# include & ltstdio.h & gt
int main()
{
int I = 1;
int sum = 0;
做{
sum+= I;
I+= 2;
} while(I & lt;=99);
printf(" 100以內的奇數之和為sum=%d\n ",sum);
返回0;
}
//使用for語句
# include & ltstdio.h & gt
int main()
{
int i,n;
int sum = 0;
for(I = 1;我& lt=50;i++){
n = 2 * I-1;
sum = sum+n;
}
printf(" 100以內的奇數之和為sum=%d\n ",sum);
返回0;
}
//使用while語句
#包含“stdio.h”
int main()
{
int i=1,n;
int sum = 0;
while(我& lt=100)
{
If(i%2==0)//判斷奇偶性
sum = sum+(I-1);
i++;
}
printf(" 100以內的奇數之和為sum=%d\n ",sum);
返回0;
}