#include <stdio.h>
#include <stdlib.h>
int Reverse(int x)
{
int i = 0, j = 0;
char num[20] = {0};
int Pos = 0; //正负数标志
int Rnum = x; //操作数
if(x < 0) //负数
{
Rnum = -x; //得到正数
Pos = 1; //负数标志
}
while(Rnum > 0)
{
num[i] = Rnum % 10; //由尾数开头存入数组
Rnum /= 10; //舍弃尾数
i++;
}
Rnum = 0; //重新作为记录
while(j < i)
{
Rnum = Rnum * 10 + num[j]; //反转
j++;
}
if(1 == Pos) //返回负号
Rnum = -Rnum;
return Rnum;
}
int main()
{
int n = -123456789;
printf("反转前：%d\n", n);
printf("反转后：%d\n", Reverse(n));
system("pause");
return 0;
}
