流程控制学习--do while

package com.kuang.struct;

public class DoWhileDemo01 {
    public static void main(String[] args) {
        int i = 0;
        int sum = 0;

        do {
            sum = sum+i;
            i++;
        }while(i<=100);
        System.out.println(sum);
        System.out.println("===============");
        int a = 0;
        while (a<0){
            System.out.println(a);
            a++;
        }
        System.out.println("===============");
        do{
            System.out.println(a);
            a++;
        }while (a<0);

    }
}

　　do while 最起码运行一次