我正在实现一个动态数组。我的默认数组容量为10。当我尝试添加10个以上的随机字符串时，出现错误“访问冲突写入位置。this-> ** _ Myproxy **为0xFDFDFDFD”。而我被扔到xutility文件的第239行。

但是，当我将数组设置为包含整数或字符时，它就可以正常工作。当我添加少于10个字符串时也是如此，所以我不知道问题出在哪里。也许我以一种扭曲的方式释放记忆？

这是我的主要功能，也是Arr类的构造函数，析构函数和void添加函数。

#include "pch.h"
#include <iostream>
#include <string>
#include <time.h>
using namespace std;

template < typename T >
class Arr
{
    T * data;
    int capacity,len;
public:
    Arr()
    {
        capacity = 10;
        len = 0;
        data = new T[ capacity ];
    }
    ~Arr()
    {
        delete[] data;
    }
    void add( T value )
    {
        if( capacity <= len ) //powiekszenie jesli nie ma miejsca
        {
            capacity = 2 * capacity;
            T * temp = new T[ capacity ];
            for( int i = 0; i <= len; i++ )
            {
                //temp[i] = data[i];
                temp[ i ] = move( data[ i ] );
            }
            delete[] data;
            data = temp;
        }
        data[ len++ ] = value;
    }
    const T retVal( const int index )
    {
        if( index >= len )
        {
            cout << "Nie ma elementu o takim indeksie,zwracam wartosc el.     
        [0]: ";
        return this->data[ 0 ];
    }
    else
         return this->data[ index ];

    }
    void change( int index,T new_data )
    {
        if( index > len )
        {
            cout << "Nie ma takiego elementu" << endl;
            return;
        }
        data[ index ] = new_data;
    }
    void clean()
    {
        if( len == 0 )
        {
            cout << "Tablica pusta!" << endl;
            return;
        }
        len = len - 1;
        for( int i = len; i >= 1; --i )
        {
            data[ i ].~T();
            len--;
        }
    }
    void getData()
    {
        cout << endl << "Akt. pojemnosc tablicy: " << capacity << endl;
        cout << "Liczba el. w tablicy: " << len << endl;
    }
    void delLast()
    {
        data[ len-- ].~T();
    }
    void printArr()
    {
        for( int i = 0; i < len; i++ )
        {
            cout << data[ i ] << " ";
        }
        //cout << "Koniec" << endl;
    }
};
string randomString( int length )
{
    string rs;
    static const char chars[] = 
  "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    int size = sizeof( chars );
    for( int i = 0; i < length; i++ )
    {
        rs = rs + chars[ rand() %( size - 1 ) ];
    }
    return rs;
}
int main()
{
Arr < string > * tab = new Arr < string >();
const int order = 7;
const int n = pow( 10,order );
clock_t start = clock();
double max_time_per_element = 0.0;
srand( time( 0 ) );
for( int i = 0; i < n; i++ )
{
    string el = randomString( 3 );
    clock_t start2 = clock();
    tab->add( el );
    clock_t stop2 = clock();
    double time_per_element =( stop2 - start2 ) / CLOCKS_PER_SEC; // obliczenie czasu pojedynczej operacji dodawania
    if( time_per_element > max_time_per_element )
    {
        time_per_element = max_time_per_element;
        cout << max_time_per_element << endl;
    }
}
clock_t stop = clock();
double general_time =( stop - start ) / CLOCKS_PER_SEC;
tab->getData();
cout << "Czas calej operacji to: " << general_time << endl;
tab->printArr();
tab->clean(); // czyszczenie tablicy wraz z uwalnianiem pamieci danych
delete tab;
return 0;
}

[EDIT]正如某些人所建议的那样，我粘贴了整个代码，而不是像开始时那样粘贴了某些部分。请原谅我，我是新来的！