diff --git a/protocol/src/test/swift/main.swift b/protocol/src/test/swift/main.swift
new file mode 100644
index 00000000..7bc67421
--- /dev/null
+++ b/protocol/src/test/swift/main.swift
@@ -0,0 +1,60 @@
+import Foundation
+
+ProtocolManager.initProtocol()
+
+//let filePath = "/Users/wjd/Desktop/zfoo-swift/zfoo-swift-support/zfoo-swift-support/compatible/normal-no-compatible.bytes"
+//let filePath = "/Users/wjd/Desktop/zfoo-swift/zfoo-swift-support/zfoo-swift-support/compatible/normal-inner-compatible.bytes"
+//let filePath = "/Users/wjd/Desktop/zfoo-swift/zfoo-swift-support/zfoo-swift-support/compatible/normal-out-compatible.bytes"
+//let filePath = "/Users/wjd/Desktop/zfoo-swift/zfoo-swift-support/zfoo-swift-support/compatible/normal-out-inner-compatible.bytes"
+//let filePath = "/Users/wjd/Desktop/zfoo-swift/zfoo-swift-support/zfoo-swift-support/compatible/normal-out-inner-inner-compatible-big.bytes"
+let filePath = "/Users/wjd/Desktop/zfoo-swift/zfoo-swift-support/zfoo-swift-support/compatible/normal-out-inner-inner-compatible.bytes"
+let fileUrl = URL(fileURLWithPath: filePath)
+let fileData = try Data(contentsOf: fileUrl)
+let bytes = [UInt8](fileData)
+let buffer = ByteBuffer()
+buffer.writeUBytes(bytes)
+let packet = ProtocolManager.read(buffer)
+let newBuffer = ByteBuffer()
+ProtocolManager.write(newBuffer, packet)
+let newPacket = ProtocolManager.read(newBuffer)
+
+byteBufferTest()
+
+func byteBufferTest() {
+    let buffer = ByteBuffer()
+    assert(buffer.getCapacity() == 128)
+    buffer.writeBool(true)
+    assert(buffer.readBool() == true)
+    buffer.writeByte(99)
+    assert(buffer.readByte() == 99)
+    buffer.writeByte(-99)
+    assert(buffer.readByte() == -99)
+    buffer.writeShort(9999)
+    assert(buffer.readShort() == 9999)
+    buffer.writeInt(2147483647)
+    assert(buffer.readInt() == 2147483647)
+    buffer.writeInt(-2147483648)
+    assert(buffer.readInt() == -2147483648)
+    buffer.writeRawInt(2147483647)
+    assert(buffer.readRawInt() == 2147483647)
+    buffer.writeRawInt(-2147483648)
+    assert(buffer.readRawInt() == -2147483648)
+    buffer.writeLong(9223372036854775807)
+    assert(buffer.readLong() == 9223372036854775807)
+    buffer.writeLong(-9999999999999)
+    assert(buffer.readLong() == -9999999999999)
+    buffer.writeRawLong(9223372036854775807)
+    assert(buffer.readRawLong() == 9223372036854775807)
+    buffer.writeRawLong(-9999999999999)
+    assert(buffer.readRawLong() == -9999999999999)
+    buffer.writeFloat(99.0)
+    assert(buffer.readFloat() == 99.0)
+    buffer.writeFloat(-99.0)
+    assert(buffer.readFloat() == -99.0)
+    buffer.writeDouble(99.0)
+    assert(buffer.readDouble() == 99.0)
+    buffer.writeDouble(-99.0)
+    assert(buffer.readDouble() == -99.0)
+    buffer.writeString("Hello World! 你好，世界！")
+    assert(buffer.readString() == "Hello World! 你好，世界！")
+}
diff --git a/protocol/src/test/swift/zfooswift/ByteBuffer.swift b/protocol/src/test/swift/zfooswift/ByteBuffer.swift
new file mode 100644
index 00000000..5ee9665f
--- /dev/null
+++ b/protocol/src/test/swift/zfooswift/ByteBuffer.swift
@@ -0,0 +1,998 @@
+import Foundation
+
+class ByteBuffer {
+    var buffer: [Int8] = Array<Int8>(repeating: 0, count: 128)
+    var writeOffset: Int = 0
+    var readOffset: Int = 0
+    
+    func adjustPadding(_ predictionLength: Int, _ beforewriteIndex: Int) {
+        // 因为写入的是可变长的int，如果预留的位置过多，则清除多余的位置
+        let currentwriteIndex = writeOffset
+        let predictionCount = writeIntCount(predictionLength)
+        let length = currentwriteIndex - beforewriteIndex - predictionCount
+        let lengthCount = writeIntCount(length)
+        let padding = lengthCount - predictionCount
+        if (padding == 0) {
+            writeOffset = beforewriteIndex
+            writeInt(length)
+            writeOffset = currentwriteIndex
+        } else {
+            let bytes = Array<Int8>(buffer[(currentwriteIndex - length)..<currentwriteIndex])
+            writeOffset = beforewriteIndex
+            writeInt(length)
+            writeBytes(bytes)
+        }
+    }
+    
+    func compatibleRead(_ beforeReadIndex: Int, _ length: Int) -> Bool {
+        return length != -1 && readOffset < length + beforeReadIndex
+    }
+    
+    func getBuffer() -> [Int8] {
+        return buffer
+    }
+    
+    func getWriteOffset() -> Int {
+        return writeOffset
+    }
+    
+    func setWriteOffset(_ writeIndex: Int) {
+        writeOffset = writeIndex
+    }
+    
+    func getReadOffset() -> Int {
+        return readOffset
+    }
+    
+    func setReadOffset(_ readIndex: Int) {
+        readOffset = readIndex
+    }
+    
+    func isReadable() -> Bool {
+        return writeOffset > readOffset
+    }
+    
+    func writeBytes(_ bytes: [Int8]) {
+        let length = bytes.count
+        ensureCapacity(length)
+        buffer[writeOffset..<(writeOffset + length)] = bytes[0..<length]
+        writeOffset += length
+    }
+    
+    func readBytes(_ length: Int) -> [Int8] {
+        let bytes = buffer[readOffset..<(readOffset + length)]
+        readOffset += length
+        return Array<Int8>(bytes)
+    }
+    
+    func writeUBytes(_ bytes: [UInt8]) {
+        let length = bytes.count
+        ensureCapacity(length)
+        let newBytes = bytes.map { Int8(bitPattern: $0) }
+        writeBytes(newBytes)
+    }
+    
+    func toBytes() -> [Int8] {
+        return Array<Int8>(buffer[0..<writeOffset])
+    }
+    
+    func getCapacity() -> Int {
+        return buffer.count - writeOffset;
+    }
+    
+    func ensureCapacity(_ capacity: Int) {
+        while (capacity - getCapacity() > 0) {
+            let newSize = buffer.count
+            let newBytes = Array<Int8>(repeating: 0, count: newSize)
+            buffer.append(contentsOf: newBytes)
+        }
+    }
+    
+    func writeBool(_ value: Bool) {
+        ensureCapacity(1)
+        buffer[writeOffset] = value ? 1 : 0
+        writeOffset += 1
+    }
+    
+    func readBool() -> Bool {
+        let value = buffer[readOffset] == 1 ? true : false
+        readOffset += 1
+        return value
+    }
+
+    func writeByte(_ value: Int8) {
+        ensureCapacity(1)
+        buffer[writeOffset] = value
+        writeOffset += 1
+    }
+    
+    func readByte() -> Int8 {
+        let value = buffer[readOffset]
+        readOffset += 1
+        return value
+    }
+    
+    func writeUByte(_ value: UInt8) {
+        ensureCapacity(1)
+        buffer[writeOffset] = Int8(bitPattern: value)
+        writeOffset += 1
+    }
+    
+    func readUByte() -> UInt8 {
+        let value = buffer[readOffset]
+        readOffset += 1
+        return UInt8(bitPattern: value)
+    }
+    
+    func writeShort(_ value: Int16) {
+        ensureCapacity(2)
+        buffer[writeOffset] = Int8(bitPattern: UInt8(value >> 8 & 0xFF))
+        buffer[writeOffset + 1] = Int8(bitPattern: UInt8(value & 0xFF))
+        writeOffset += 2
+    }
+    
+    func readShort() -> Int16 {
+        let value = Int16(UInt8(bitPattern: buffer[readOffset])) << 8 | Int16(UInt8(bitPattern: buffer[readOffset + 1]))
+        readOffset += 2
+        return value
+    }
+    
+    func writeIntCount(_ intValue: Int) -> Int {
+        let longValue = Int64(intValue)
+        let value = UInt64(bitPattern: ((longValue << 1) ^ (longValue >> 63)))
+        if (value >> 7 == 0) {
+            return 1
+        }
+        if (value >> 14 == 0) {
+            return 2
+        }
+        if (value >> 21 == 0) {
+            return 3
+        }
+
+        if (value >> 28 == 0) {
+            return 4
+        }
+        return 5
+    }
+    
+    func writeRawInt(_ value: Int32) {
+        writeUByte(UInt8(value >> 24 & 0xFF))
+        writeUByte(UInt8(value >> 16 & 0xFF))
+        writeUByte(UInt8(value >> 8 & 0xFF))
+        writeUByte(UInt8(value & 0xFF))
+    }
+    
+    func readRawInt() -> Int32 {
+        let value = Int32(readUByte()) << 24 | Int32(readUByte()) << 16 | Int32(readUByte()) << 8 | Int32(readUByte())
+        return value
+    }
+  
+    func writeRawLong(_ value: Int64) {
+        writeUByte(UInt8(value >> 56 & 0xFF))
+        writeUByte(UInt8(value >> 48 & 0xFF))
+        writeUByte(UInt8(value >> 40 & 0xFF))
+        writeUByte(UInt8(value >> 32 & 0xFF))
+        writeUByte(UInt8(value >> 24 & 0xFF))
+        writeUByte(UInt8(value >> 16 & 0xFF))
+        writeUByte(UInt8(value >> 8 & 0xFF))
+        writeUByte(UInt8(value & 0xFF))
+    }
+    
+    func readRawLong() -> Int64 {
+        let value = Int64(readUByte()) << 56 | Int64(readUByte()) << 48 | Int64(readUByte()) << 40 | Int64(readUByte()) << 32 | Int64(readUByte()) << 24 | Int64(readUByte()) << 16 | Int64(readUByte()) << 8 | Int64(readUByte())
+        return value
+    }
+    
+    func writeInt(_ value: Int) {
+        var v = value
+        if (v > 2147483647) {
+            v = 2147483647
+        } else if (v < -2147483648) {
+            v = -2147483648
+        }
+        writeLong(Int64(v))
+    }
+    
+    func readInt() -> Int {
+        return Int(readLong())
+    }
+    
+    func writeLong(_ longValue: Int64) {
+        let value = UInt64(bitPattern: ((longValue << 1) ^ (longValue >> 63)))
+        
+        if (value >> 7 == 0) {
+            writeUByte(UInt8(value))
+            return;
+        }
+        
+        if (value >> 14 == 0) {
+            writeUByte(UInt8((value & 0x7F) | 0x80))
+            writeUByte(UInt8(value >> 7))
+            return;
+        }
+        
+        if (value >> 21 == 0) {
+            writeUByte(UInt8(value & 0x7F | 0x80))
+            writeUByte(UInt8((value >> 7 & 0x7F) | 0x80))
+            writeUByte(UInt8(value >> 14))
+            return;
+        }
+        
+        if ((value >> 28) == 0) {
+            writeUByte(UInt8(value & 0x7F | 0x80))
+            writeUByte(UInt8((value >> 7 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 14 & 0x7F) | 0x80))
+            writeUByte(UInt8(value >> 21))
+            return;
+        }
+        
+        if (value >> 35 == 0) {
+            writeUByte(UInt8(value & 0x7F | 0x80))
+            writeUByte(UInt8((value >> 7 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 14 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 21 & 0x7F) | 0x80))
+            writeUByte(UInt8(value >> 28))
+            return;
+        }
+        
+        if (value >> 42 == 0) {
+            writeUByte(UInt8(value & 0x7F | 0x80))
+            writeUByte(UInt8((value >> 7 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 14 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 21 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 28 & 0x7F) | 0x80))
+            writeUByte(UInt8(value >> 35))
+            return;
+        }
+        
+        if (value >> 49 == 0) {
+            writeUByte(UInt8(value & 0x7F | 0x80))
+            writeUByte(UInt8((value >> 7 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 14 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 21 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 28 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 35 & 0x7F) | 0x80))
+            writeUByte(UInt8(value >> 42))
+            return;
+        }
+        
+        if ((value >> 56) == 0) {
+            writeUByte(UInt8(value & 0x7F | 0x80))
+            writeUByte(UInt8((value >> 7 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 14 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 21 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 28 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 35 & 0x7F) | 0x80))
+            writeUByte(UInt8((value >> 42 & 0x7F) | 0x80))
+            writeUByte(UInt8(value >> 49))
+            return;
+        }
+        
+        writeUByte(UInt8(value & 0x7F | 0x80))
+        writeUByte(UInt8((value >> 7 & 0x7F) | 0x80))
+        writeUByte(UInt8((value >> 14 & 0x7F) | 0x80))
+        writeUByte(UInt8((value >> 21 & 0x7F) | 0x80))
+        writeUByte(UInt8((value >> 28 & 0x7F) | 0x80))
+        writeUByte(UInt8((value >> 35 & 0x7F) | 0x80))
+        writeUByte(UInt8((value >> 42 & 0x7F) | 0x80))
+        writeUByte(UInt8((value >> 49 & 0x7F) | 0x80))
+        writeUByte(UInt8(value >> 56))
+    }
+    
+    func readLong() -> Int64 {
+        var b = UInt64(readUByte())
+        var value = b & 0x7F
+        if ((b & 0x80) != 0) {
+            b = UInt64(readUByte())
+            value |= (b & 0x7F) << 7
+            if ((b & 0x80) != 0) {
+                b = UInt64(readUByte())
+                value |= (b & 0x7F) << 14
+                if ((b & 0x80) != 0) {
+                    b = UInt64(readUByte())
+                    value |= (b & 0x7F) << 21
+                    if ((b & 0x80) != 0) {
+                        b = UInt64(readUByte())
+                        value |= (b & 0x7F) << 28
+                        if ((b & 0x80) != 0) {
+                            b = UInt64(readUByte())
+                            value |= (b & 0x7F) << 35
+                            if ((b & 0x80) != 0) {
+                                b = UInt64(readUByte())
+                                value |= (b & 0x7F) << 42
+                                if ((b & 0x80) != 0) {
+                                    b = UInt64(readUByte())
+                                    value |= (b & 0x7F) << 49
+                                    if ((b & 0x80) != 0) {
+                                        b = UInt64(readUByte())
+                                        value |= b << 56
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        return Int64(bitPattern: value >> 1) ^ -(Int64(bitPattern: value) & 1)
+    }
+    
+    func writeFloat(_ value: Float32) {
+        let v = value.bitPattern
+        writeRawInt(Int32(bitPattern: v))
+    }
+    
+    func readFloat() -> Float32 {
+        let value = UInt32(bitPattern: readRawInt())
+        return Float32(bitPattern: value)
+    }
+    
+    func writeDouble(_ value: Float64) {
+        let v = value.bitPattern
+        writeRawLong(Int64(bitPattern: v))
+    }
+    
+    func readDouble() -> Float64 {
+        let value = UInt64(bitPattern: readRawLong())
+        return Float64(bitPattern: value)
+    }
+    
+    func writeString(_ value: String) {
+        if (value.isEmpty) {
+            writeInt(0)
+            return
+        }
+        if let data = value.data(using: .utf8) {
+            let byteArray = [UInt8](data)
+            let bytes = byteArray.map { Int8(bitPattern: $0) }
+            writeInt(bytes.count)
+            writeBytes(bytes)
+        }
+    }
+    
+    func readString() -> String {
+        let length = readInt()
+        if (length <= 0) {
+            return ""
+        }
+        let int8Array = readBytes(length)
+        let bytes = int8Array.map { UInt8(bitPattern: $0) }
+        let value = String(bytes: bytes, encoding: .utf8)!
+        return value
+    }
+    
+    func writePacket(_ packet: Any?, _ protocolId: Int) {
+        let pro = ProtocolManager.getProtocol(protocolId)
+        pro.write(self, packet)
+    }
+    
+    func readPacket(_ protocolId: Int) -> Any {
+        let pro = ProtocolManager.getProtocol(protocolId)
+        return pro.read(self)
+    }
+
+    func writeBoolArray(_ array: Array<Bool>) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writeBool(ele)
+            }
+        }
+    }
+
+    func readBoolArray() -> Array<Bool> {
+        let size = readInt()
+        var array = Array<Bool>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readBool())
+            }
+        }
+        return array
+    }
+
+    func writeByteArray(_ array: Array<Int8>) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writeByte(ele)
+            }
+        }
+    }
+
+    func readByteArray() -> Array<Int8> {
+        let size = readInt()
+        var array = Array<Int8>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readByte())
+            }
+        }
+        return array
+    }
+
+    func writeShortArray(_ array: Array<Int16>) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writeShort(ele)
+            }
+        }
+    }
+
+    func readShortArray() -> Array<Int16> {
+        let size = readInt()
+        var array = Array<Int16>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readShort())
+            }
+        }
+        return array
+    }
+
+    func writeIntArray(_ array: Array<Int>) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writeInt(ele)
+            }
+        }
+    }
+
+    func readIntArray() -> Array<Int> {
+        let size = readInt()
+        var array = Array<Int>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readInt())
+            }
+        }
+        return array
+    }
+
+    func writeLongArray(_ array: Array<Int64>) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writeLong(ele)
+            }
+        }
+    }
+
+    func readLongArray() -> Array<Int64> {
+        let size = readInt()
+        var array = Array<Int64>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readLong())
+            }
+        }
+        return array
+    }
+
+    func writeFloatArray(_ array: Array<Float32>) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writeFloat(ele)
+            }
+        }
+    }
+
+    func readFloatArray() -> Array<Float32> {
+        let size = readInt()
+        var array = Array<Float32>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readFloat())
+            }
+        }
+        return array
+    }
+
+    func writeDoubleArray(_ array: Array<Float64>) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writeDouble(ele)
+            }
+        }
+    }
+
+    func readDoubleArray() -> Array<Float64> {
+        let size = readInt()
+        var array = Array<Float64>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readDouble())
+            }
+        }
+        return array
+    }
+
+    func writeStringArray(_ array: Array<String>) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writeString(ele)
+            }
+        }
+    }
+
+    func readStringArray() -> Array<String> {
+        let size = readInt()
+        var array = Array<String>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readString())
+            }
+        }
+        return array
+    }
+
+    func writePacketArray(_ array: Array<Any>, _ protocolId: Int) {
+        if (array.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(array.count)
+            for ele in array {
+                writePacket(ele, protocolId)
+            }
+        }
+    }
+
+    func readPacketArray(_ protocolId: Int) -> Array<Any> {
+        let size = readInt()
+        var array = Array<Any>()
+        if (size > 0) {
+            for _ in 0..<size {
+                array.append(readPacket(protocolId))
+            }
+        }
+        return array
+    }
+
+    func writeBoolSet(_ set: Set<Bool>) {
+        if (set.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(set.count)
+            for ele in set {
+                writeBool(ele)
+            }
+        }
+    }
+
+    func readBoolSet() -> Set<Bool> {
+        let size = readInt()
+        var set = Set<Bool>()
+        if (size > 0) {
+            for _ in 0..<size {
+                set.insert(readBool())
+            }
+        }
+        return set
+    }
+
+    func writeByteSet(_ set: Set<Int8>) {
+        if (set.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(set.count)
+            for ele in set {
+                writeByte(ele)
+            }
+        }
+    }
+
+    func readByteSet() -> Set<Int8> {
+        let size = readInt()
+        var set = Set<Int8>()
+        if (size > 0) {
+            for _ in 0..<size {
+                set.insert(readByte())
+            }
+        }
+        return set
+    }
+
+    func writeShortSet(_ set: Set<Int16>) {
+        if (set.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(set.count)
+            for ele in set {
+                writeShort(ele)
+            }
+        }
+    }
+
+    func readShortSet() -> Set<Int16> {
+        let size = readInt()
+        var set = Set<Int16>()
+        if (size > 0) {
+            for _ in 0..<size {
+                set.insert(readShort())
+            }
+        }
+        return set
+    }
+
+    func writeIntSet(_ set: Set<Int>) {
+        if (set.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(set.count)
+            for ele in set {
+                writeInt(ele)
+            }
+        }
+    }
+
+    func readIntSet() -> Set<Int> {
+        let size = readInt()
+        var set = Set<Int>()
+        if (size > 0) {
+            for _ in 0..<size {
+                set.insert(readInt())
+            }
+        }
+        return set
+    }
+
+    func writeLongSet(_ set: Set<Int64>) {
+        if (set.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(set.count)
+            for ele in set {
+                writeLong(ele)
+            }
+        }
+    }
+
+    func readLongSet() -> Set<Int64> {
+        let size = readInt()
+        var set = Set<Int64>()
+        if (size > 0) {
+            for _ in 0..<size {
+                set.insert(readLong())
+            }
+        }
+        return set
+    }
+
+    func writeFloatSet(_ set: Set<Float32>) {
+        if (set.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(set.count)
+            for ele in set {
+                writeFloat(ele)
+            }
+        }
+    }
+
+    func readFloatSet() -> Set<Float32> {
+        let size = readInt()
+        var set = Set<Float32>()
+        if (size > 0) {
+            for _ in 0..<size {
+                set.insert(readFloat())
+            }
+        }
+        return set
+    }
+
+    func writeDoubleSet(_ set: Set<Float64>) {
+        if (set.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(set.count)
+            for ele in set {
+                writeDouble(ele)
+            }
+        }
+    }
+
+    func readDoubleSet() -> Set<Float64> {
+        let size = readInt()
+        var set = Set<Float64>()
+        if (size > 0) {
+            for _ in 0..<size {
+                set.insert(readDouble())
+            }
+        }
+        return set
+    }
+
+    func writeStringSet(_ set: Set<String>) {
+        if (set.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(set.count)
+            for ele in set {
+                writeString(ele)
+            }
+        }
+    }
+
+    func readStringSet() -> Set<String> {
+        let size = readInt()
+        var set = Set<String>()
+        if (size > 0) {
+            for _ in 0..<size {
+                set.insert(readString())
+            }
+        }
+        return set
+    }
+
+    func writeIntIntMap(_ map: Dictionary<Int, Int>) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeInt(key)
+                writeInt(value)
+            }
+        }
+    }
+
+    func readIntIntMap() -> Dictionary<Int, Int> {
+        let size = readInt()
+        var map = Dictionary<Int, Int>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readInt()
+                let value = readInt()
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeIntLongMap(_ map: Dictionary<Int, Int64>) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeInt(key)
+                writeLong(value)
+            }
+        }
+    }
+
+    func readIntLongMap() -> Dictionary<Int, Int64> {
+        let size = readInt()
+        var map = Dictionary<Int, Int64>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readInt()
+                let value = readLong()
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeIntStringMap(_ map: Dictionary<Int, String>) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeInt(key)
+                writeString(value)
+            }
+        }
+    }
+
+    func readIntStringMap() -> Dictionary<Int, String> {
+        let size = readInt()
+        var map = Dictionary<Int, String>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readInt()
+                let value = readString()
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeIntPacketMap(_ map: Dictionary<Int, Any>, _ protocolId: Int) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeInt(key)
+                writePacket(value, protocolId)
+            }
+        }
+    }
+
+    func readIntPacketMap(_ protocolId: Int) -> Dictionary<Int, Any> {
+        let size = readInt()
+        var map = Dictionary<Int, Any>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readInt()
+                let value = readPacket(protocolId)
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeLongIntMap(_ map: Dictionary<Int64, Int>) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeLong(key)
+                writeInt(value)
+            }
+        }
+    }
+
+    func readLongIntMap() -> Dictionary<Int64, Int> {
+        let size = readInt()
+        var map = Dictionary<Int64, Int>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readLong()
+                let value = readInt()
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeLongLongMap(_ map: Dictionary<Int64, Int64>) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeLong(key)
+                writeLong(value)
+            }
+        }
+    }
+
+    func readLongLongMap() -> Dictionary<Int64, Int64> {
+        let size = readInt()
+        var map = Dictionary<Int64, Int64>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readLong()
+                let value = readLong()
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeLongPacketMap(_ map: Dictionary<Int64, Any>, _ protocolId: Int) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeLong(key)
+                writePacket(value, protocolId)
+            }
+        }
+    }
+
+    func readLongPacketMap(_ protocolId: Int) -> Dictionary<Int64, Any> {
+        let size = readInt()
+        var map = Dictionary<Int64, Any>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readLong()
+                let value = readPacket(protocolId)
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeStringIntMap(_ map: Dictionary<String, Int>) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeString(key)
+                writeInt(value)
+            }
+        }
+    }
+
+    func readStringIntMap() -> Dictionary<String, Int> {
+        let size = readInt()
+        var map = Dictionary<String, Int>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readString()
+                let value = readInt()
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeStringLongMap(_ map: Dictionary<String, Int64>) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeString(key)
+                writeLong(value)
+            }
+        }
+    }
+
+    func readStringLongMap() -> Dictionary<String, Int64> {
+        let size = readInt()
+        var map = Dictionary<String, Int64>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readString()
+                let value = readLong()
+                map[key] = value
+            }
+        }
+        return map
+    }
+
+    func writeStringPacketMap(_ map: Dictionary<String, Any>, _ protocolId: Int) {
+        if (map.isEmpty) {
+            writeInt(0)
+        } else {
+            writeInt(map.count)
+            for (key, value) in map {
+                writeString(key)
+                writePacket(value, protocolId)
+            }
+        }
+    }
+
+    func readStringPacketMap(_ protocolId: Int) -> Dictionary<String, Any> {
+        let size = readInt()
+        var map = Dictionary<String, Any>()
+        if (size > 0) {
+            for _ in 0..<size {
+                let key = readString()
+                let value = readPacket(protocolId)
+                map[key] = value
+            }
+        }
+        return map
+    }
+}
diff --git a/protocol/src/test/swift/zfooswift/IProtocolRegistration.swift b/protocol/src/test/swift/zfooswift/IProtocolRegistration.swift
new file mode 100644
index 00000000..710cf6dc
--- /dev/null
+++ b/protocol/src/test/swift/zfooswift/IProtocolRegistration.swift
@@ -0,0 +1,12 @@
+import Foundation
+
+protocol IProtocol {
+    func protocolId() -> Int
+}
+
+
+protocol IProtocolRegistration {
+    func write(_ buffer: ByteBuffer, _ packet: Any?)
+    
+    func read(_ buffer: ByteBuffer) -> Any
+}
diff --git a/protocol/src/test/swift/zfooswift/ProtocolManager.swift b/protocol/src/test/swift/zfooswift/ProtocolManager.swift
new file mode 100644
index 00000000..9e04b91b
--- /dev/null
+++ b/protocol/src/test/swift/zfooswift/ProtocolManager.swift
@@ -0,0 +1,32 @@
+import Foundation
+
+class ProtocolManager {
+    static var protocols = Dictionary<Int, IProtocolRegistration>()
+
+    static func initProtocol() {
+        // initProtocol
+        protocols[0] = EmptyObjectRegistration()
+        protocols[101] = NormalObjectRegistration()
+        protocols[102] = ObjectARegistration()
+        protocols[103] = ObjectBRegistration()
+        protocols[104] = SimpleObjectRegistration()
+    }
+    
+    static func getProtocol(_ protocolId: Int) -> IProtocolRegistration {
+        return protocols[protocolId]!
+    }
+    
+    static func write(_ buffer: ByteBuffer, _ packet: Any) {
+        let p = packet as! IProtocol
+        let protocolId = p.protocolId()
+        let pro = getProtocol(protocolId)
+        buffer.writeShort(Int16(protocolId))
+        pro.write(buffer, p)
+    }
+    
+    static func read(_ buffer: ByteBuffer) -> Any {
+        let protocolId = buffer.readShort()
+        let pro = getProtocol(Int(protocolId))
+        return pro.read(buffer)
+    }
+}
\ No newline at end of file
diff --git a/protocol/src/test/swift/zfooswift/packet/EmptyObject.swift b/protocol/src/test/swift/zfooswift/packet/EmptyObject.swift
new file mode 100644
index 00000000..35673265
--- /dev/null
+++ b/protocol/src/test/swift/zfooswift/packet/EmptyObject.swift
@@ -0,0 +1,35 @@
+import Foundation
+
+
+class EmptyObject : IProtocol {
+    
+    
+    func protocolId() -> Int {
+        return 0
+    }
+}
+
+class EmptyObjectRegistration : IProtocolRegistration {
+    func write(_ buffer: ByteBuffer, _ packet: Any?) {
+        if (packet == nil) {
+            buffer.writeInt(0)
+            return
+        }
+        let message = packet as! EmptyObject
+        buffer.writeInt(-1)
+    }
+    
+    func read(_ buffer: ByteBuffer) -> Any {
+        let length = buffer.readInt()
+        let packet = EmptyObject()
+        if (length == 0) {
+            return packet
+        }
+        let beforeReadIndex = buffer.getReadOffset()
+        
+        if (length > 0) {
+            buffer.setReadOffset(beforeReadIndex + length)
+        }
+        return packet
+    }
+}
\ No newline at end of file
diff --git a/protocol/src/test/swift/zfooswift/packet/NormalObject.swift b/protocol/src/test/swift/zfooswift/packet/NormalObject.swift
new file mode 100644
index 00000000..a8c38dfc
--- /dev/null
+++ b/protocol/src/test/swift/zfooswift/packet/NormalObject.swift
@@ -0,0 +1,120 @@
+import Foundation
+
+// 常规的对象，取所有语言语法的交集，基本上所有语言都支持下面的语法
+class NormalObject : IProtocol {
+    var a: Int8 = 0
+    var aaa: Array<Int8> = []
+    var b: Int16 = 0
+    // 整数类型
+    var c: Int = 0
+    var d: Int64 = 0
+    var e: Float32 = 0.0
+    var f: Float64 = 0.0
+    var g: Bool = false
+    var jj: String = ""
+    var kk: ObjectA? = nil
+    var l: Array<Int> = []
+    var ll: Array<Int64> = []
+    var lll: Array<ObjectA> = []
+    var llll: Array<String> = []
+    var m: Dictionary<Int, String> = [:]
+    var mm: Dictionary<Int, ObjectA> = [:]
+    var s: Set<Int> = []
+    var ssss: Set<String> = []
+    var outCompatibleValue: Int = 0
+    var outCompatibleValue2: Int = 0
+    
+    func protocolId() -> Int {
+        return 101
+    }
+}
+
+class NormalObjectRegistration : IProtocolRegistration {
+    func write(_ buffer: ByteBuffer, _ packet: Any?) {
+        if (packet == nil) {
+            buffer.writeInt(0)
+            return
+        }
+        let message = packet as! NormalObject
+        let beforeWriteIndex = buffer.getWriteOffset()
+        buffer.writeInt(857)
+        buffer.writeByte(message.a)
+        buffer.writeByteArray(message.aaa)
+        buffer.writeShort(message.b)
+        buffer.writeInt(message.c)
+        buffer.writeLong(message.d)
+        buffer.writeFloat(message.e)
+        buffer.writeDouble(message.f)
+        buffer.writeBool(message.g)
+        buffer.writeString(message.jj)
+        buffer.writePacket(message.kk, 102)
+        buffer.writeIntArray(message.l)
+        buffer.writeLongArray(message.ll)
+        buffer.writePacketArray(message.lll, 102)
+        buffer.writeStringArray(message.llll)
+        buffer.writeIntStringMap(message.m)
+        buffer.writeIntPacketMap(message.mm, 102)
+        buffer.writeIntSet(message.s)
+        buffer.writeStringSet(message.ssss)
+        buffer.writeInt(message.outCompatibleValue)
+        buffer.writeInt(message.outCompatibleValue2)
+        buffer.adjustPadding(857, beforeWriteIndex)
+    }
+    
+    func read(_ buffer: ByteBuffer) -> Any {
+        let length = buffer.readInt()
+        let packet = NormalObject()
+        if (length == 0) {
+            return packet
+        }
+        let beforeReadIndex = buffer.getReadOffset()
+        let result0 = buffer.readByte()
+        packet.a = result0
+        let array1 = buffer.readByteArray()
+        packet.aaa = array1
+        let result2 = buffer.readShort()
+        packet.b = result2
+        let result3 = buffer.readInt()
+        packet.c = result3
+        let result4 = buffer.readLong()
+        packet.d = result4
+        let result5 = buffer.readFloat()
+        packet.e = result5
+        let result6 = buffer.readDouble()
+        packet.f = result6
+        let result7 = buffer.readBool()
+        packet.g = result7
+        let result8 = buffer.readString()
+        packet.jj = result8
+        let result9 = buffer.readPacket(102) as! ObjectA
+        packet.kk = result9
+        let list10 = buffer.readIntArray()
+        packet.l = list10
+        let list11 = buffer.readLongArray()
+        packet.ll = list11
+        let list12 = buffer.readPacketArray(102) as! Array<ObjectA>
+        packet.lll = list12
+        let list13 = buffer.readStringArray()
+        packet.llll = list13
+        let map14 = buffer.readIntStringMap()
+        packet.m = map14
+        let map15 = buffer.readIntPacketMap(102) as! Dictionary<Int, ObjectA>
+        packet.mm = map15
+        let set16 = buffer.readIntSet()
+        packet.s = set16
+        let set17 = buffer.readStringSet()
+        packet.ssss = set17
+        if (buffer.compatibleRead(beforeReadIndex, length)) {
+            let result18 = buffer.readInt()
+            packet.outCompatibleValue = result18
+        }
+        if (buffer.compatibleRead(beforeReadIndex, length)) {
+            let result19 = buffer.readInt()
+            packet.outCompatibleValue2 = result19
+        }
+        if (length > 0) {
+            buffer.setReadOffset(beforeReadIndex + length)
+        }
+        return packet
+    }
+}
\ No newline at end of file
diff --git a/protocol/src/test/swift/zfooswift/packet/ObjectA.swift b/protocol/src/test/swift/zfooswift/packet/ObjectA.swift
new file mode 100644
index 00000000..875dc0da
--- /dev/null
+++ b/protocol/src/test/swift/zfooswift/packet/ObjectA.swift
@@ -0,0 +1,53 @@
+import Foundation
+
+
+class ObjectA : IProtocol {
+    var a: Int = 0
+    var m: Dictionary<Int, String> = [:]
+    var objectB: ObjectB? = nil
+    var innerCompatibleValue: Int = 0
+    
+    func protocolId() -> Int {
+        return 102
+    }
+}
+
+class ObjectARegistration : IProtocolRegistration {
+    func write(_ buffer: ByteBuffer, _ packet: Any?) {
+        if (packet == nil) {
+            buffer.writeInt(0)
+            return
+        }
+        let message = packet as! ObjectA
+        let beforeWriteIndex = buffer.getWriteOffset()
+        buffer.writeInt(201)
+        buffer.writeInt(message.a)
+        buffer.writeIntStringMap(message.m)
+        buffer.writePacket(message.objectB, 103)
+        buffer.writeInt(message.innerCompatibleValue)
+        buffer.adjustPadding(201, beforeWriteIndex)
+    }
+    
+    func read(_ buffer: ByteBuffer) -> Any {
+        let length = buffer.readInt()
+        let packet = ObjectA()
+        if (length == 0) {
+            return packet
+        }
+        let beforeReadIndex = buffer.getReadOffset()
+        let result0 = buffer.readInt()
+        packet.a = result0
+        let map1 = buffer.readIntStringMap()
+        packet.m = map1
+        let result2 = buffer.readPacket(103) as! ObjectB
+        packet.objectB = result2
+        if (buffer.compatibleRead(beforeReadIndex, length)) {
+            let result3 = buffer.readInt()
+            packet.innerCompatibleValue = result3
+        }
+        if (length > 0) {
+            buffer.setReadOffset(beforeReadIndex + length)
+        }
+        return packet
+    }
+}
\ No newline at end of file
diff --git a/protocol/src/test/swift/zfooswift/packet/ObjectB.swift b/protocol/src/test/swift/zfooswift/packet/ObjectB.swift
new file mode 100644
index 00000000..138d10ae
--- /dev/null
+++ b/protocol/src/test/swift/zfooswift/packet/ObjectB.swift
@@ -0,0 +1,45 @@
+import Foundation
+
+
+class ObjectB : IProtocol {
+    var flag: Bool = false
+    var innerCompatibleValue: Int = 0
+    
+    func protocolId() -> Int {
+        return 103
+    }
+}
+
+class ObjectBRegistration : IProtocolRegistration {
+    func write(_ buffer: ByteBuffer, _ packet: Any?) {
+        if (packet == nil) {
+            buffer.writeInt(0)
+            return
+        }
+        let message = packet as! ObjectB
+        let beforeWriteIndex = buffer.getWriteOffset()
+        buffer.writeInt(4)
+        buffer.writeBool(message.flag)
+        buffer.writeInt(message.innerCompatibleValue)
+        buffer.adjustPadding(4, beforeWriteIndex)
+    }
+    
+    func read(_ buffer: ByteBuffer) -> Any {
+        let length = buffer.readInt()
+        let packet = ObjectB()
+        if (length == 0) {
+            return packet
+        }
+        let beforeReadIndex = buffer.getReadOffset()
+        let result0 = buffer.readBool()
+        packet.flag = result0
+        if (buffer.compatibleRead(beforeReadIndex, length)) {
+            let result1 = buffer.readInt()
+            packet.innerCompatibleValue = result1
+        }
+        if (length > 0) {
+            buffer.setReadOffset(beforeReadIndex + length)
+        }
+        return packet
+    }
+}
\ No newline at end of file
diff --git a/protocol/src/test/swift/zfooswift/packet/SimpleObject.swift b/protocol/src/test/swift/zfooswift/packet/SimpleObject.swift
new file mode 100644
index 00000000..81c33240
--- /dev/null
+++ b/protocol/src/test/swift/zfooswift/packet/SimpleObject.swift
@@ -0,0 +1,41 @@
+import Foundation
+
+
+class SimpleObject : IProtocol {
+    var c: Int = 0
+    var g: Bool = false
+    
+    func protocolId() -> Int {
+        return 104
+    }
+}
+
+class SimpleObjectRegistration : IProtocolRegistration {
+    func write(_ buffer: ByteBuffer, _ packet: Any?) {
+        if (packet == nil) {
+            buffer.writeInt(0)
+            return
+        }
+        let message = packet as! SimpleObject
+        buffer.writeInt(-1)
+        buffer.writeInt(message.c)
+        buffer.writeBool(message.g)
+    }
+    
+    func read(_ buffer: ByteBuffer) -> Any {
+        let length = buffer.readInt()
+        let packet = SimpleObject()
+        if (length == 0) {
+            return packet
+        }
+        let beforeReadIndex = buffer.getReadOffset()
+        let result0 = buffer.readInt()
+        packet.c = result0
+        let result1 = buffer.readBool()
+        packet.g = result1
+        if (length > 0) {
+            buffer.setReadOffset(beforeReadIndex + length)
+        }
+        return packet
+    }
+}
\ No newline at end of file