任务

找出下面代码中的错误，并修复它

#include <iostream>

using namespace std;

class Test{
public:
    Test(int size){
        data = new int[size];
    }
    
    ~Test(){
        delete data;
    }
    
    void insert(int data){
        data[index ++] = data;
    }    
    
    void show(void){
        for(int i = 0;i < index;i ++){
            cout << *data << endl;
            data ++;
        }
    }

private:
    int index;
    int *data;
};

int main(void)
{
    int i;
    Test *t = new Test(5);
    
    for(i = 0;i < 10;i ++){
        t->insert(i + 1);
    }
    
    t->show();
    
    return 0;
}