循环练习

/*
public class First {
    public static void main(String[] args) {
        int sum = 0;
        for (int i = 1;i<=100;i++){
            if (i%2 == 0){
                sum += i;
            }
        } System.out.println("结果是："+ sum );
    }
}
*/break结束

public class First {
    public static void main(String[] args) {
           for (int i = 1;i <= 10;i++){
               if(i==4){
                   break;//直接结束！
              }
             System.out.println("石海兵使我儿"+ i);
         }
     }
}
/*cotinue跳过

public class First {
    public static void main(String[] args) {
           for (int i = 1;i <= 10;i++){
               if(i==4){
                  continue;//跳过第四层执行下一层
                  }
               System.out.println(i + "层到了");
           }
      }
}

 /*死循环
格式
while（true）{
循环体语句；
}

public class First {
    public static void main(String[] args) {
    while (true){
        System.out.println("傻逼石海兵");
    }
           }
}
/*循环嵌套

public class First {
    public static void main(String[] args) {

        for (int h=0;h<24;h++){
            for (int m =0;m<60;m++){
                System.out.println(h+"时"+m+"分");
            }
        }
    }
}