GO 基础

基本语法练习 打印 乘法表

package main

import ("fmt")

func main(){
    for n:=1;n<=9;n++{
	    for m:=1;m<=n;m++{
		    fmt.Print(m,"*",n,"=",m*n,"\t")
		}
		fmt.Println()
	}
}

有意思的 裸返回 等价

package main

import "fmt"

func swap(x,y string)(b,a string){
     a = x
     b = y
     return
}

func main(){
    var first = "hello"
	var second = "world"
	fmt.Println(swap(first,second))
}

package main

import "fmt"

func swap(x,y string)(string,string){
    return y,x
}

func main(){
    var first = "hello"
	var second = "world"
	first,second = swap(first,second)
	fmt.Println(first,second)
}