不知道那出现错误，求解

name = new char[strlen(temp.name) + 1];
new的是数组，要用[]

class study {

public:
    char* name, * url;

public:
    study(const char* name, const char* url) {
        this->name = new char[strlen(name) + 1];
        this->url = new char[strlen(url) + 1];
        if (this->name)
            strcpy(this->name, name);

        if (this->url)
            strcpy(this->url, url);
    }

    study(study& temp) {
        name = new char[strlen(temp.name) + 1];
        url = new char[strlen(temp.url) + 1];
        if (name)
            strcpy(name, temp.name);
        if (url)
            strcpy(url, temp.url);
    }
    study& operator =(study& temp) {
        delete[] name;
        delete[] url;
        name = new char[strlen(temp.name) + 1];
        url = new char[strlen(temp.url) + 1];
        if (name)
            strcpy(name, temp.name);
        if (url)
            strcpy(url, temp.url);

        return *this;
    }
};

int main()
{
    study a("试试", "www.shishi.com");
    cout << a.name << ":" << a.url << endl;
    study b = a;
    cout << b.name << ":" << b.url << endl;
    study c("看看", "www.kankan.com");
    b = c;
    cout << b.name << ":" << b.url << endl;
    system("pause");
    return 0;
}