题解 | #邮箱验证#

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String str = scanner.next();
        int count1 = str.indexOf("@");
        int count2 = str.indexOf(".com");
        if(count1!=-1&&count2!=-1&&count1<count2&&count1!=0)
        {
            System.out.println("邮箱格式合法");
        }
        else{
            System.out.println("邮箱格式不合法");
        }
    }
}