simple-tcp-test.go

package main

import (
    "fmt"
    "net"
)

func main() {
    conn, err := net.Dial("tcp", "127.0.0.1:7")
    if err != nil {
        panic(err)
    }

    text := "test_string..."

    fmt.Println("send :", text)
    conn.Write([]byte(text))

    buf := make([]byte, 256)
    conn.Read(buf)
    fmt.Println("recv :", string(buf))

    conn.Close()
}