C language and C++ function parameter passing: address results of variables, pointers, arrays, and structures (formal parameters and actual parameters)

Conclusion: Whatever the value passed by the actual parameter, the formal parameter will receive the value (whether it is an address or a number), and the formal parameter is temporarily created in the system stack of the function, and the formal parameter has a new address.
It should be noted that the structure is also a data type. If the actual parameter is a structure and you want to pass the address, you need to add & in front (same as the basic data type)

#include <stdio.h>

void parameter_try(int arr[],int *p,int x)
{
    
    
    printf("\n\n形参数组arr 的首元素地址：%d（相同）",arr);
    printf("\n形参指针p 指向的地址：%d（相同）",p);
    printf("\n形参指针p 的地址：%d（不相同）",p);
    printf("\n形参x 的地址：%d（不相同）",&x);
}

int main()
{
    
    
    int arr[]={
    
    1,2},*p,x=0;
    printf("\n实参数组arr 的首元素地址：%d",arr);
    printf("\n实参指针p 指向的地址：%d",p);
    printf("\n实参指针p 的地址：%d",&p);
    printf("\n实参x 的地址：%d",&x);
    parameter_try(arr,p,x);
    return 0;
}