while语句和do...while语句

#include<stdio.h>int main(){int i,sum = 0;printf("please enter i,i=?");scanf("%d",&i);while(i<=10){sum = sum + i;i ++;}printf("sum=%d\n",sum);return 0;}//i=1,sum=55......i=11,sum=0#include<stdio.h>int main(){int i,sum = 0;printf("please enter i,i=?");scanf("%d",&i);do{sum = sum + i;i ++;}while(i<=10);printf("sum=%d\n",sum);return 0;}//i=1,sum=55......i=11,sum=11