package main

import (
    "bufio"
    "log"
    "os"
)

func main() {
    inputReader := bufio.NewReader(os.Stdin)
    log.Println("请输入一句话")
    input, err := inputReader.ReadString('\n')
    if err != nil {
        log.Println("遇到错误：", err)
    } else {
        input = input[:len(input)-1]
        log.Println("你好，", input)
    }
}