9. Go Language - Process Control

First, the flow control syntax

if condition_1{
    
}else if condition_2{
    
}else if condition_3{
    
}else{
    
}

Two, switch branch

package main

import "fmt"

func main(){
    var a int = 10
    // go语言中不需写break防止case穿透问题
    switch a {
        case 0：
            fmt.Println("a is equal 0")
        case 10:
            fmt.Println("a is equal 10")
        default：
            fmt.Println("a is equal default")
    }
}

package main

import(
    "fmt"
    "math/rand"
)

func main(){
    var n int
    // 随机生成一个整数
    n = rand.Intn(100)
   
    for{
        var input int
        // 输入
        fmt.Scanf("%d\n", &input)
        flag ：= false
        switch{
            case input == n:
                fmt.Println("you are right")
                flag = true
            case input > n:
                fmt.Println("bigger")
            case input < n:
                fmt.Println("less")
        }
        if flag{
            break
        }
    }
}