[C++知识库]用while循环和do...while循环求累加计算

#include<stdio.h>
#include<windows.h>
//累加计算公式

//while循环?
void test1()
{
?? ?int sum = 0, i;
?? ?scanf("%d", &i);
?? ?while(i <= 100)
?? ?{
?? ??? ?sum = sum + i;
?? ??? ?i++;
?? ?}
?? ?printf("sum = %d\n", sum);
}
//do...while循环
void test2()
{
?? ?int sum = 0, i;
?? ?scanf("%d", &i);
?? ?do
?? ?{
?? ??? ?sum = sum + i;
?? ??? ?i++;
?? ?} while(i <= 100);
?? ?printf("%d\n", sum);
}

void main()
{
?? ?test1();
?? ?test2();
?? ?system("pause");
}

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