import java.util.Scanner;
public class Demo {
public static void main(String[] args) {
int a = 1;
Scanner scan = new Scanner(System.in);
for (int i = 1; i <= 3; i++) {
System.out.print("输入密码:");
int password = scan.nextInt();
if (password != a) {
System.out.println("错误" + i + "次");
if(i==3){
System.out.println("程序关闭");
System.exit(0);
}
} else {
System.out.println("密码正确");
}
}
scan.close();
}
}
看不懂你再问什么