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#include <stdio.h>
int temp;
void transfer(unsigned long int);
int main()
{
unsigned long num;
printf("请输入一个正整数:");
scanf("%lu",&num);
transfer(num);
return 0;
}
void transfer(unsigned int num)
{
temp=num%2;
num=num/2;
if(num!=0)
{
transfer(num);
printf("%d",temp);
}
else
{
printf("%d",temp);
}
}
呜呜呜,不知道为啥输出结果都是只有1
每次调用transfer(),余数temp应该是独立的,不应该使用全局变量。修改如下:
- #include <stdio.h>
- void transfer(unsigned long);
- int main()
- {
- unsigned long num;
- printf("请输入一个正整数:");
- scanf("%lu", &num);
- transfer(num);
- return 0;
- }
- void transfer(unsigned long num)
- {
- int temp = num % 2;
- num = num / 2;
- if (num != 0)
- {
- transfer(num);
- printf("%d", temp);
- }
- else
- {
- printf("%d", temp);
- }
- }
复制代码
transfer()函数可以简化一下:
- void transfer(unsigned long num)
- {
- int temp = num % 2;
- num = num / 2;
- if (num != 0)
- transfer(num);
- printf("%d", temp);
- }
复制代码
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