#include<stdio.h>
//写一个函数：求1-100的和 1-100奇数的和 1-100偶数和
void Sum(int n)
{
int sum = 0;
int sumOdd = 0;//奇数
int sumEve = 0;//偶数
for(int i = 0;i <= n;i++)
{
sum = sum + i;
}
for(int i = 1;i <= n;i += 2)
{
sumOdd = sumOdd + i;
}
for(int i = 2;i <= n;i += 2)
{
sumEve = sumEve + i;
}
printf("%d\n",sum);
printf("%d\n",sumOdd);
printf("%d\n",sumEve);
}
int main()
{
Sum(100);
getchar();
return 0;
}
答案：5050 2500 2550
