我哪里错了？

#include "stdafx.h"
#include <stdio.h>

int main(int argc, char* argv[])
{
    int i,sum=0;
    while(1){
        scanf("%d",&i);
        if(i>10||i<0){
            printf("请输入小于10整数\n");
            continue;
        }
        else if(i==0){
            printf("退出循环\n");
            break;
        }
        sum=0;
        do{
            sum=sum+i;
            i--;
        }while(i>0);
        printf("sum=%d\n",sum);


}
getchar();
return 0;