题解 | 邮箱验证

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String str = scanner.next();
        String output = "邮箱格式不合法";
        if (str.contains("@qq.com") && !str.startsWith("@qq.com")) output = "邮箱格式合法";
        System.out.println(output);
    }
}