利用while循环统计1到50中所有偶数和

#include <stdio.h>

void main()
{
int i=0,sum=0;
while(i<=50)
{
if(i%2==0)
sum+=i;
i++;
}
printf("sum=%d\n",sum);
}

C语言
main()
{
int i,s;
i=2;
s=0;
do
{
s=s+i;
i=i+2;
}
while(i<=50);
printf("%d\n",s);

}

main()
{ int n=1,s=0;
while(n<=50)
if(n%2==0) s+=n;
n++;
printf("%d",s);
}

我也才学完C

int i = 2;
int sum = 0;

while (i <= 50) {
sum += i;
i += 2;
}

main()
{
int i=1,s=0;
while(i<=50)
{
if(i%2==0)s+=i;
i++;
}
printf("the sum of oushu between 1 and 50 is: %d",s);
}