递归初体验

#include <stdio.h>
#include <stdlib.h>

//接受一个整型值（无符号）按照顺序打印它的每一位
//1234    打印1 2 3 4
void PrintNum(unsigned int num){
 if (num > 9){
  PrintNum(num / 10);
 }
 printf(" %d", num % 10);
}
int main()
{
 PrintNum(1234);
 
 
 system("pause");
 return 0;
}