发送一个单字节的网络。

Question

I've got a Go TCP server which accepts connections, I'd like to echo the messages back 1 byte at a time, I can't see a way to get net.Conn to send a single byte using net.Conn.Write

c.Write([]byte(b)) cannot convert b (type byte) to type []byte

c.Write(b) cannot use b (type byte) as type []byte in argument to c.Write

Answer 1

an io.Writer always accepts a []byte as the argument. Use a 1 byte long byte slice. What you tried ([]byte(b)) was to convert a single byte to a byte slice. Instead, create a one-element byte slice with b as the only element:

n, err := c.Write([]byte{b})