Go语言基础语法之三——输入输出语句

package main

import "fmt"

func main() {
   var num1 int
   var num2 int
   var op string
   fmt.Println("请输入第一个整数")
   fmt.Scan(&num1)
   fmt.Println("请输入第二个整数")
   fmt.Scan(&num2)
   fmt.Println("请输入运算法则")
   fmt.Scan(&op)
   var result int
   switch op {
   case "+":
      result = num1 + num2
   case "-":
      result = num1 - num2
   case "*":
      result = num1 * num2
   case "/":
      result = num1 / num2
   default:
      result = num1 + num2
   }
   fmt.Printf("计算结果是:%d", result)
}