每周小题--函数传值

//来源：公众号【编程珠玑】#include<stdio.h>
void swap_int(int a , int b)
{
    int temp = a;
    a = b;
    b = temp;
}
void swap_str(char* a , char* b)
{
    char* temp = a;
    a = b;
    b = temp;
}

int main(void)
{
    int a = 10;
    int b = 5;
    char* str_a = "hello world";
    char* str_b = "world hello";

    swap_int(a , b);
    swap_str(str_a , str_b);
    printf("%d,%d\n",a,b);
    printf("%s,%s\n",str_a,str_b);
    return 0;
}

5,10                                                                                                                                           
hello world,world hello  

5,10                                                                                                                                          
world hello,hello world

10,5                                                                                                                                           
world hello,hello world 

10,5                                                                                                                                           
hello world,world hello