直接上代碼
參考：https://www.cnblogs.com/gamesky/archive/2012/08/22/2650820.html

#include <iostream>

int * test(int array[]){
    cout << array << endl;            // 0xffffcb90

    cout << array[0] << endl;        // 0

    array[3] = 100;

    return array;

}

int main(){

    int length = 4;

    int in_a[length] = {0};

    cout << in_a << endl;            // 0xffffcb90

    int *p;

    p = test(in_a);

    cout << p << endl;               / /0xffffcb90

    cout << in_a[3] << endl;      // 100

    cout << p[3] << endl;          // 100

}