Go语言基础教程：四则运算的实现方法

package main

import "fmt"

func main() {
    var a, b int
    fmt.Print("请输入两个整数：")
    fmt.Scan(&a, &b)
    sum := a + b
    fmt.Printf("两数之和为：%d
", sum)
}

package main

import "fmt"

func main() {
    var a, b int
    fmt.Print("请输入两个整数：")
    fmt.Scan(&a, &b)
    diff := a - b
    fmt.Printf("两数之差为：%d
", diff)
}

package main

import "fmt"

func main() {
    var a, b int
    fmt.Print("请输入两个整数：")
    fmt.Scan(&a, &b)
    product := a * b
    fmt.Printf("两数之积为：%d
", product)
}

package main

import "fmt"

func main() {
    var a, b int
    fmt.Print("请输入两个整数：")
    fmt.Scan(&a, &b)

    if b == 0 {
        fmt.Println("除数不能为0")
        return
    }

    quotient := float64(a) / float64(b)
    fmt.Printf("两数之商为：%.2f
", quotient)
}