c++- 小白真心提問C++ delete，為啥連最基本的也會報錯嘛

小白真心提問C++ delete，為啥連最基本的也會報錯嘛

 #include <iostream>

using namespace std;

struct ListNode {
    int val;
    ListNode *next;
    ListNode (int x): val(x), next(NULL) {}
};

int main(int argc, char const *argv[])
{
    // ListNode n1(2);
    // ListNode dummy(0);
    // dummy.next = &n1;
    // ListNode *p = &dummy;
    // delete p;
    int *p = new int;
    int t = 10;
    p = &t;
    delete p;
    return 0;
}

如上所示，剛接觸內存分配，百度了好些東西了，不明白為什麼連這個最基本的分配和釋放都會報錯pointer being freed was not allocated，真心求助

最佳回答：

因為你改變了指針，你試圖分配堆棧上的t，當然出錯

     int *p = new int;
    int t = 10;
    int *p1=p;
    p = &t;
    delete p1;