diff --git a/Drivers/NRF24L01.cpp b/Drivers/NRF24L01.cpp
index ed7a2ffb..2cb9eca0 100644
--- a/Drivers/NRF24L01.cpp
+++ b/Drivers/NRF24L01.cpp
@@ -386,16 +386,14 @@ bool NRF24L01::Config()
 	if(st.Beken) debug_printf("上海Beken芯片\r\n");
 
 	debug_printf("    本地地址: ");
-	Sys.ShowHex(Address, 5, '-');
-	debug_printf("\r\n");
+	ByteArray(Address, 5).Show(true);
 
 	// 根据AddrBits决定相应通道是否打开
 	byte bits = AddrBits >> 1;
 	if(bits & 0x01)
 	{
 		debug_printf("    Addres1: ");
-		Sys.ShowHex(Address1, 5, '-');
-		debug_printf("\r\n");
+		ByteArray(Address1, 5).Show(true);
 	}
 	for(int i=0; i<4; i++)
 	{
@@ -403,10 +401,8 @@ bool NRF24L01::Config()
 		if(bits & 0x01)
 		{
 			debug_printf("    Addres%d: ", i + 2);
-			Sys.ShowHex(Addr2_5 + i, 1, '-');
-			debug_printf("-");
-			Sys.ShowHex(Address1 + 1, 4, '-');
-			debug_printf("\r\n");
+			ByteArray(Addr2_5 + i, 1).Show(true);
+			ByteArray(Address1 + 1, 4).Show(true);
 		}
 	}
 	static const short powers[] = {-12, -6, -4, 0, 1, 3, 4, 7};
diff --git a/Message/Controller.cpp b/Message/Controller.cpp
index bbd054f2..1808cc69 100644
--- a/Message/Controller.cpp
+++ b/Message/Controller.cpp
@@ -64,16 +64,14 @@ uint Controller::Dispatch(ITransport* port, ByteArray& bs, void* param, void* pa
 #if MSG_DEBUG
 	/*msg_printf("TinyNet::Dispatch[%d] ", len);
 	// 输出整条信息
-	Sys.ShowHex(buf, len, '-');
-	msg_printf("\r\n");*/
+	ByteArray(buf, len).Show(true);*/
 #endif
 	if(len > control->Port->MaxSize)
 	{
 #if MSG_DEBUG
 		msg_printf("TinyNet::Dispatch[%d] ", len);
 		// 输出整条信息
-		Sys.ShowHex(buf, len, '-');
-		msg_printf("\r\n");
+		ByteArray(buf, len).Show(true);
 #endif
 		msg_printf("数据长度 %d 超过控制器可接受最大长度 %d \r\n", len, control->Port->MaxSize);
 		//assert_param2(len <= control->Port->MaxSize, "数据长度超过控制器可接受最大长度");
@@ -102,8 +100,7 @@ uint Controller::Dispatch(ITransport* port, ByteArray& bs, void* param, void* pa
 			
 			msg_printf("TinyNet::DispatchError[%d] ", len);
 			// 输出整条信息
-			Sys.ShowHex(buf, len, '-');
-			msg_printf("\r\n");
+			ByteArray(buf, len).Show(true);
 #endif
 			break;
 		}
diff --git a/Net/Dhcp.cpp b/Net/Dhcp.cpp
index 1cb166b5..7a1cb6e1 100644
--- a/Net/Dhcp.cpp
+++ b/Net/Dhcp.cpp
@@ -290,7 +290,7 @@ void Dhcp::Process(ByteArray& bs, const IPEndPoint& ep)
 		if(opt)
 		{
 			debug_printf(" ");
-			Sys.ShowString(&opt->Data, opt->Length);
+			String(&opt->Data, opt->Length).Show(true);
 		}
 		debug_printf("\r\n");
 	}
diff --git a/Sys.cpp b/Sys.cpp
index 829277ce..7ec032e5 100644
--- a/Sys.cpp
+++ b/Sys.cpp
@@ -368,11 +368,10 @@ void TSys::ShowInfo()
 	debug_printf(" R%dp%d", cpu->Revision, cpu->Variant);
     debug_printf("\r\n");
     debug_printf("ChipID:");
-	ShowHex(ID, ArrayLength(ID), '-');
+	ByteArray(ID, ArrayLength(ID)).Show(true);
 
 	debug_printf("\t");
-	ShowString(ID, 12, false);
-    debug_printf("\r\n");
+	String(ID, 12).Show(true);
 
 	// 输出堆信息
 	uint start = (uint)&__heap_base;
@@ -393,62 +392,12 @@ void TSys::ShowInfo()
 	Time.Now().Show(true);
 	// 系统启动时间
 	debug_printf("Start: %dms (Inited: %dms)\r\n", (uint)(Time.Current() - StartTime), (uint)(initedTime - StartTime));
-	debug_printf("技术支持: http://www.NewLifeX.com\r\n");
+	debug_printf("Support: http://www.NewLifeX.com\r\n");
 
     debug_printf("\r\n");
 #endif
 }
 
-#define __HELP__MODULE__ 1
-#ifdef __HELP__MODULE__
-// 显示十六进制数据，指定分隔字符
-void TSys::ShowHex(byte* buf, uint len, char sep)
-{
-	for(int i=0; i < len; i++)
-	{
-		debug_printf("%02X", *buf++);
-		if(i < len - 1 && sep != '\0') debug_printf("%c", sep);
-		//if(((i + 1) & 0xF) == 0) debug_printf("\r\n");
-	}
-	//debug_printf("\r\n");
-}
-
-// 显示字符串，不指定长度时自动找\0
-void TSys::ShowString(byte* buf, uint len, bool autoEnd)
-{
-	if(len == 0) len = 1000;
-    for(int i=0; i<len; i++)
-    {
-		if(buf[i] == 0 && autoEnd) return;
-		if(buf[i] >= 32 && buf[i] <= 126 || buf[i] == 0x0A || buf[i] == 0x0D || buf[i] == 0x09)
-			debug_printf("%c", buf[i]);
-		else
-			debug_printf("%02X", buf[i]);
-    }
-}
-
-// 源数据src转为十六进制字符编码再放入目标字符buf，比如0xA8在目标放两个字节0x41(A) 0x38(8)
-void TSys::ToHex(byte* buf, byte* src, uint len)
-{
-	for(int i=0; i < len; i++, src++)
-	{
-		byte n = *src >> 4;
-		if(n < 10)
-			n += '0';
-		else
-			n += 'A' - 10;
-		*buf++ = n;
-
-		n = *src & 0x0F;
-		if(n < 10)
-			n += '0';
-		else
-			n += 'A' - 10;
-		*buf++ = n;
-	}
-}
-#endif
-
 #define __TASK__MODULE__ 1
 #ifdef __TASK__MODULE__
 
diff --git a/Sys.h b/Sys.h
index af7d18d7..c9a70d4e 100644
--- a/Sys.h
+++ b/Sys.h
@@ -108,13 +108,6 @@ public:
     void Reset();   // 重启系统
     bool (*OnError)(uint code);  // 系统出错时引发，返回值决定是否停止系统
     Func OnStop;
-
-	// 显示十六进制数据，指定分隔字符
-	void ShowHex(byte* buf, uint len, char sep = '\0');
-	// 显示字符串，不指定长度时自动找\0
-	void ShowString(byte* buf, uint len = 0, bool autoEnd = true);
-	// 源数据src转为十六进制字符编码再放入目标字符buf，比如0xA8在目标放两个字节0x41(A) 0x38(8)
-	void ToHex(byte* buf, byte* src, uint len);
 private:
 	int _Index;	// MCU在型号表中的索引
 
diff --git a/Test/CrcTest.cpp b/Test/CrcTest.cpp
index 5f72b0ff..30dabbad 100644
--- a/Test/CrcTest.cpp
+++ b/Test/CrcTest.cpp
@@ -80,7 +80,7 @@ void TestCrc()
 	uint data = 0x12345678;
 	uint crc = Crc::Hash((byte*)&data, 4, 0);
 	uint crc2 = Crc::Hash(&data, 4);
-	Sys.ShowHex((byte*)&data, 4);
+	ByteArray((byte*)&data, 4)).Show();
 	debug_printf("\r\n\tSoftCrc:0x%08x  HardCrc:0x%08x \r\n", crc, crc2);
 	// 无初值时，两者一样
 
@@ -88,7 +88,7 @@ void TestCrc()
 	// 试试二次计算Crc
 	crc = Crc::Hash((byte*)&crc, 4, 0);
 	crc2 = Crc::Hash(&crc2, 4);
-	Sys.ShowHex((byte*)&temp, 4);
+	ByteArray((byte*)&temp, 4)).Show();
 	debug_printf("\r\n\t");
 	debug_printf("SoftCrc:0x%08x  HardCrc:0x%08x \r\n", crc, crc2);
 	// 结果相同，但都不是0
@@ -99,7 +99,7 @@ void TestCrc()
 	data2 += data;
 	crc = Crc::Hash((byte*)&data2, 8, 0);
 	crc2 = Crc::Hash(&data2, 8);
-	Sys.ShowHex((byte*)&data2, 8);
+	ByteArray((byte*)&data2, 8)).Show();
 	debug_printf("\r\n\t");
 	debug_printf("SoftCrc:0x%08x  HardCrc:0x%08x \r\n", crc, crc2);
 	// 结果相同，但都不是0
@@ -108,14 +108,14 @@ void TestCrc()
 	// 实际上就是数字为初值，对它自身进行校验码计算
 	crc = Crc::Hash((byte*)&temp, 4, data);
 	crc2 = HardCrc(&temp, 4, data);
-	Sys.ShowHex((byte*)&temp, 4);
+	ByteArray((byte*)&temp, 4)).Show();
 	debug_printf(" <= 0x%08x\r\n\t", data);
 	debug_printf("SoftCrc:0x%08x  HardCrc:0x%08x \r\n", crc, crc2);
 	// 结果不同，HardCrc结果跟8字节测试相同
 
 	crc = Crc::Hash((byte*)&temp, 4, temp);
 	crc2 = HardCrc(&temp, 4, temp);
-	Sys.ShowHex((byte*)&temp, 4);
+	ByteArray((byte*)&temp, 4)).Show();
 	debug_printf(" <= 0x%08x\r\n\t", temp);
 	debug_printf("SoftCrc:0x%08x  HardCrc:0x%08x \r\n", crc, crc2);
 	// 结果不同，SoftCrc结果跟8字节测试相同
@@ -125,7 +125,7 @@ void TestCrc()
 
 	crc = Crc::Hash((byte*)DataBuffer, size*4, 0);
 	crc2 = Crc::Hash(DataBuffer, size*4);
-	Sys.ShowHex((byte*)DataBuffer, 0x20);
+	ByteArray((byte*)DataBuffer, 0x20)).Show();
 	debug_printf("\r\n\t");
 	debug_printf("SoftCrc:0x%08x  HardCrc:0x%08x \r\n", crc, crc2);
 	// 无初值时，两者一样
@@ -135,7 +135,7 @@ void TestCrc()
 	// 实际应用中，先计算数据的校验，然后接着附加校验码部分
 	crc = Crc::Hash((byte*)&temp, 4, temp);
 	crc2 = HardCrc((byte*)&temp, 4, temp);
-	Sys.ShowHex((byte*)&temp, 4);
+	ByteArray((byte*)&temp, 4)).Show();
 	debug_printf(" <= 0x%08x\r\n\t", temp);
 	debug_printf("SoftCrc:0x%08x  HardCrc:0x%08x \r\n", crc, crc2);
 	// 有初值时，两者不一样
@@ -146,7 +146,7 @@ void TestCrc()
 	crc = Crc::Hash((byte*)&crc, 4, crc);
 	crc2 = HardCrc(DataBuffer, size*4, 0);
 	crc2 = HardCrc((byte*)&crc2, 4, crc2);
-	Sys.ShowHex((byte*)DataBuffer, 0x20);
+	ByteArray((byte*)DataBuffer, 0x20).Show();
 	debug_printf(" <= 0x%08x\r\n\t", temp);
 	debug_printf("SoftCrc:0x%08x  HardCrc:0x%08x \r\n", crc, crc2);
 
diff --git a/Test/EthernetTest.cpp b/Test/EthernetTest.cpp
index 41549d52..deb99d2e 100644
--- a/Test/EthernetTest.cpp
+++ b/Test/EthernetTest.cpp
@@ -31,8 +31,7 @@ bool OnUdpReceived(UdpSocket* socket, UDP_HEADER* udp, byte* buf, uint len)
     debug_printf("Udp::On %d From ", socket->LocalPort);
     TinyIP::ShowIP(socket->RemoteIP);
     debug_printf(":%d with Payload=%d  ", socket->RemotePort, len);
-    Sys.ShowString(buf, len);
-    debug_printf(" \r\n");
+    String(buf, len).Show(true);
 
     return socket->LocalPort == 888;
 }
@@ -63,8 +62,7 @@ bool OnTcpReceived(TcpSocket* socket, TCP_HEADER* tcp, byte* buf, uint len)
     debug_printf("Tcp::Received From ");
     TinyIP::ShowIP(socket->RemoteIP);
     debug_printf(":%d with Payload=%d  ", socket->RemotePort, len);
-    Sys.ShowString(buf, len);
-    debug_printf(" \r\n");
+    String(buf, len).Show(true);
 
     return true;
 }
@@ -74,8 +72,7 @@ bool HttpReceived(TcpSocket* socket, TCP_HEADER* tcp, byte* buf, uint len)
     debug_printf("HttpClient::Received From ");
     TinyIP::ShowIP(socket->RemoteIP);
     debug_printf(":%d with Payload=%d  ", socket->RemotePort, len);
-    Sys.ShowString(buf, len);
-    debug_printf(" \r\n");
+    String(buf, len).Show(true);
 
     return false;
 }
diff --git a/Test/NRF24L01Test.cpp b/Test/NRF24L01Test.cpp
index 01d11248..393f0630 100644
--- a/Test/NRF24L01Test.cpp
+++ b/Test/NRF24L01Test.cpp
@@ -31,19 +31,12 @@ void OnReceive(void* param)
 	uint len = nrf->Read(bs);
     if(len)
     {
-        //Sys.ShowString(buf, len);
-        //debug_printf("\r\n");
 		bs.Show(true);
     }
 }
 
 uint OnReceive(ITransport* transport, ByteArray& bs, void* param, void* param2)
 {
-	/*if(len)
-	{
-        Sys.ShowString(buf, len);
-        debug_printf("\r\n");
-	}*/
 	bs.Show(true);
 
 	return 0;
diff --git a/Test/SerialTest.cpp b/Test/SerialTest.cpp
index 52abc12e..1d2c468b 100644
--- a/Test/SerialTest.cpp
+++ b/Test/SerialTest.cpp
@@ -3,8 +3,6 @@
 uint OnUsartRead(ITransport* transport, ByteArray& bs, void* param, void* param2)
 {
 	debug_printf("收到：");
-    //Sys.ShowString(buf, len);
-    //debug_printf("\r\n");
 	bs.Show(true);
     
     return 0;
diff --git a/TinyIP/HttpClient.cpp b/TinyIP/HttpClient.cpp
index 9daa49e4..c6f1f086 100644
--- a/TinyIP/HttpClient.cpp
+++ b/TinyIP/HttpClient.cpp
@@ -213,8 +213,7 @@ void TcpSocket::OnDataReceive(TCP_HEADER* tcp, uint len)
 		debug_printf("Tcp Receive(%d) From ", len);
 		TinyIP::ShowIP(RemoteIP);
 		debug_printf(" : ");
-		Sys.ShowString(tcp->Next(), len);
-		debug_printf("\r\n");
+		String(tcp->Next(), len).Show(true);
 #endif
 	}
 	// 发送ACK，通知已收到
diff --git a/TinyIP/Icmp.cpp b/TinyIP/Icmp.cpp
index f6c2f830..3669e27f 100644
--- a/TinyIP/Icmp.cpp
+++ b/TinyIP/Icmp.cpp
@@ -87,8 +87,7 @@ bool IcmpSocket::Process(IP_HEADER& ip, Stream& ms)
 		debug_printf(" Payload=%d ", len);
 		// 越过2个字节标识和2字节序列号
 		debug_printf("ID=0x%04X Seq=0x%04X ", __REV16(icmp->Identifier), __REV16(icmp->Sequence));
-		Sys.ShowString(icmp->Next(), len);
-		debug_printf(" \r\n");
+		String(icmp->Next(), len).Show(true);
 #endif
 	}
 
diff --git a/TinyIP/Tcp.cpp b/TinyIP/Tcp.cpp
index 4d6630d4..6be63609 100644
--- a/TinyIP/Tcp.cpp
+++ b/TinyIP/Tcp.cpp
@@ -235,8 +235,7 @@ void TcpSocket::OnDataReceive(TCP_HEADER& tcp, uint len)
 		debug_printf("Tcp:Receive(%d) From ", len);
 		Remote.Show();
 		debug_printf(" ");
-		Sys.ShowString(data, len);
-		debug_printf("\r\n");
+		String(data, len).Show(true);
 #endif
 	}
 	// 发送ACK，通知已收到
diff --git a/TinyIP/TinyIP.cpp b/TinyIP/TinyIP.cpp
index 4628c452..52865feb 100644
--- a/TinyIP/TinyIP.cpp
+++ b/TinyIP/TinyIP.cpp
@@ -285,8 +285,7 @@ bool TinyIP::SendEthernet(ETH_TYPE type, const MacAddress& remote, const byte* b
 	debug_printf(" => ");
 	remote.Show();
 	debug_printf("\r\n");*/
-	/*Sys.ShowHex((byte*)eth->Next(), len, '-');
-	debug_printf("\r\n");*/
+	/*ByteArray((byte*)eth->Next(), len).Show(true);*/
 
 	ByteArray bs((byte*)eth, len);
 	return _port->Write(bs);
diff --git a/TinyIP/Udp.cpp b/TinyIP/Udp.cpp
index ce08fcc6..ed8dacca 100644
--- a/TinyIP/Udp.cpp
+++ b/TinyIP/Udp.cpp
@@ -99,8 +99,7 @@ void UdpSocket::OnProcess(IP_HEADER& ip, UDP_HEADER& udp, Stream& ms)
 		CurLocal.Show();
 		debug_printf(" Payload=%d udp_len=%d \r\n", len, __REV16(udp.Length));
 
-		Sys.ShowHex(data, len);
-		debug_printf(" \r\n");
+		ByteArray(data, len).Show(true);
 #endif
 	}
 }
@@ -120,7 +119,7 @@ void UdpSocket::SendPacket(UDP_HEADER& udp, uint len, IPAddress& ip, ushort port
 	debug_printf("SendUdp: len=%d(0x%x) %d => ", tlen, tlen, __REV16(udp.SrcPort));
 	ip.Show();
 	debug_printf(":%d ", port);
-	if(tlen > 0) Sys.ShowHex(udp.Next(), tlen > 64 ? 64 : tlen, false);
+	if(tlen > 0) ByteArray(udp.Next(), tlen > 64 ? 64 : tlen).Show();
 	debug_printf("\r\n");
 #else
 	Sys.Sleep(1);
diff --git a/TokenNet/TokenMessage.cpp b/TokenNet/TokenMessage.cpp
index 19bfa38f..c91a8c04 100644
--- a/TokenNet/TokenMessage.cpp
+++ b/TokenNet/TokenMessage.cpp
@@ -135,9 +135,7 @@ void TokenMessage::Show() const
 	{
 		assert_ptr(Data);
 		debug_printf(" Data[%d]=", Length);
-		//Sys.ShowHex(Data, Length, false);
-		ByteArray bs(Data, Length);
-		bs.Show();
+		ByteArray(Data, Length).Show();
 	}
 	debug_printf("\r\n");
 #endif
@@ -223,8 +221,7 @@ bool TokenController::Valid(const Message& msg)
 #if MSG_DEBUG
 	/*msg_printf("TokenController::Dispatch ");
 	// 输出整条信息
-	Sys.ShowHex(buf, ms.Length, '-');
-	msg_printf("\r\n");*/
+	ByteArray(buf, ms.Length).Show(true);*/
 #endif
 
 	return true;
diff --git a/Type.h b/Type.h
index b7074b8b..2b9a40ac 100644
--- a/Type.h
+++ b/Type.h
@@ -472,8 +472,8 @@ public:
 	String(int length = 0) : Array(length) { }
 	String(char item, int count) : Array(count) { Set(item, 0, count); }
 	// 因为使用外部指针，这里初始化时没必要分配内存造成浪费
-	String(char* str, int len = 0) : Array(0) { Set(str, len); }
-	String(const char* str, int len = 0) : Array(0) { Set(str, len); }
+	String(void* str, int len = 0) : Array(0) { Set(str, len); }
+	String(const void* str, int len = 0) : Array(0) { Set(str, len); }
 	String(const String& str) : Array(str.Length()) { Copy(str); }
 
 	// 输出对象的字符串表示方式