While循环

 

package struct;

public class While {
    public static void main(String[] args) {
        //输出1~100
        int a=0;
        while (a<100){
            a++;
            System.out.println(a);
        }
        //计算1+2+3+4+......100
        int b=0;
        int c=0;//和
        while (b<=100){
            c=b+c;
            b++;
        }
        System.out.println(c);//5050
    }


}