例5.3

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;
}

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;
}