The difference between traditional values and call references cited

Just remember one sentence:

General references by value is to generate a temporary object, and call by reference is to call the parameter itself.

Reference to the following C language code appreciated:

Implement two methods in test.h file

　#include <stdio.h>

/ * Swapping two numbers * / 
void Exchange ( int X, int Y) {
     int TEMP; 
    TEMP = X; 
    X = Y; 
    Y = TEMP; 
    the printf ( " the first number after the exchange: \ n% d \ n exchange after the second number: \ n-% D \ n- " , X, Y); 
} 

/ * exchange pointers two numbers * / 
void exchangeAddress ( int * X, int * Y) {
     int TEMP * = X;
     * X * = Y;
     * Y = TEMP; 
    the printf ( "The first number after the exchange: \ n% d \ n After exchanging a second number: \ n% d \ n " , X *, * Y); 
}

Call these two methods as follows test.c file:

#include <stdio.h>
#include "test.h"

int  main(){
    int a, b;
    printf("请输入a: \n");
    scanf("%d",&a);
    
    printf("请输入b: \n");
    scanf("%d",&b);

    exchange(a,b);
    printf("交换后：\n a=%d\n b=%d\n",a,b) ;
    
    exchangeAddress(&a,&b);
    printf(""Address exchange: \% Na = D \ D% Nb = \ n-,a,b) ;

} 
    

Print Results:

 

 

Reproduced in: https: //www.cnblogs.com/lovemargin/p/10562386.html