C语言函数的值传递和地址传递

#include

void swap_value(int a, int b){
    int temp = a;
    a = b;
    b = temp;
}

void swap_address(int *p, int *q){
    int temp = *p;
    *p = *q;
    *q = temp;
}

int main(){
    int a = 1;
    int b = 2;
    //值传递
    swap_value(a, b);
    printf("值传递后 --> a的值为: %d  b的值为: %dn",a,b);
    //地址传递
    swap_address(&a, &b);
    printf("地址传递后 --> a的值为: %d  b的值为: %dn",a,b);

}