package main

import (
	"errors"
	"fmt"
)

func t() error {
	a := 10
	b := 5
	if b == 0 {

		return errors.New("除数不能为零")

	} else {
		res := a / b
		fmt.Println(res)

		return nil
	}
}
func main() {
	err := t()
	if err != nil {
		fmt.Println("自定义错误")
		//停止后面程序继续执行
		panic(err)
	}
	fmt.Println("继续执行")

	var scores [5]int
	scores[0] = 10
	scores[1] = 10
	scores[2] = 30
	scores[3] = 40
	for i := 0; i < len(scores); i++ {
		fmt.Println(scores[i])
		fmt.Scanln(&scores[i])
	}
	//索引用key接收 value用于里面的值
	for key, value := range scores {
		fmt.Println(key, value)

	}
}