c++ free delete 析构函数

free 不能调用析构函数

delete 才能调用析构函数

#include <climits>
#include <iostream>
#include <string>
#include <stdio.h>

using namespace std;

class A {
public:
A(){};
A(int n):_n(n){};
~A(){cout<<"xi"<<endl;};
int _n;
};


int main() {
    A* a = new A(2);
    // free(a);
    delete(a);
    return 0;
}