从键盘输入一个四位正整数，将其逆序输出 源代码

输入的四位正整数逆序输出的源代码示例：#include <stdio.h>int main(){
int number, n1, n2, n3, n4;
printf("请输入一个四位正整数：");
scanf("%d", &number);
n1 = number / 1000;
n2 = (number % 1000) / 100;
n3 = (number % 100) / 10;
n4 = number % 10;
printf("逆序输出：%d%d%d%d\n", n4, n3, n2, n1);
return 0;
}