go 语言简单demo

   go 语言简单的demo

package main

import (
	"fmt"
	"bufio"
	"os"
	"strings"
)

func main() {
	// 从命令行获取输入
	inputReader:=bufio.NewReader(os.Stdin)
	fmt.Println("please input your name:")
	input,err:=inputReader.ReadString('\n')
	if err!=nil{
		fmt.Printf("an error occured:%s\n",err)
		// 出现异常退出
		os.Exit(0)
	}else{
		name:=input[:len(input)-1]
		fmt.Printf("Hello %s,what can i do for you?\n",name)
	}
	for{
		input,err:=inputReader.ReadString('\n')
		if err!=nil{
			fmt.Printf("an error occured:%s\n",err)
			// 出现异常退出
			continue
		}else{
			input:=input[:len(input)-1]
			input=strings.ToLower(input)
			switch input {
			case "":
				continue
			case "nothing","bye":
				fmt.Println("Bye!")
				os.Exit(0)
			default:
				if strings.Contains(input,"?"){
					input=strings.Replace(input,"?","!",1)
					input=strings.Replace(input,"吗","",1)
					fmt.Println(input)
				}else{
					fmt.Println("Sorry, I didn't catch you. Your question is too hard!!!")
				}
			}

		}
	}

}