while 和 do while 的区别
while循环
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| #include <stdio.h>
int main()
{
int i=1,sum=0;
while (i<=100) {
sum=sum+i;
i++;
}
printf("sum=%d\n",sum);
return 0;
} |
#include <stdio.h>
int main()
{
int i=1,sum=0;
while (i<=100) {
sum=sum+i;
i++;
}
printf("sum=%d\n",sum);
return 0;
}
do while循环
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| while (i<=100) {
sum=sum+(i++);
} |
while (i<=100) {
sum=sum+(i++);
}
分别输入 1, 2, 10, 11, 20 试试吧