C++中实现[]重载报错？

Question

在visual_studio中想做一个[]重载的小练习，

#include <cstring>
#include <iostream>
using namespace std;

struct Person
{
    double salary;
    char *name;
};

class SalaryManage
{
private:
    Person *employ;
    int max;
    int n;
public:
    SalaryManage(int Max = 0)
        :max(Max),n(0),employ(new Person[max])
    {
    }

    double  &operator[](char *Name) 
    {
        Person *p;
        for (p = employ;p < employ + n;p++)
            if (strcmp(p->name, Name) == 0)
                return p->salary;
        p = employ + n++;
        p->name = new char[strlen(Name) + 1];
        strcpy(p->name, Name);
        p->salary = 0;
        return p->salary;
    }

    void display()
    {
        for (int i = 0;i < n;i++)
            cout << employ[i].name << "  " << employ[i].salary << endl;
    }
    ~SalaryManage()
    {
        delete[] employ;
    }
};

int main()
{
    SalaryManage s(3);
    s["张三"]  = 2188.88;
    s["里斯"] = 1234.65;
    s["王五"] = 3200.98;
    cout << "张三\t" << s["张三"] << endl;
    cout << "里斯\t" << s["里斯"] << endl;
    cout << "王五\t" << s["王五"] << endl;

    s.display();
}

可是主函数部分显示

作为C++新手，请大佬们帮忙指点一二

Answer 1

double &operator[](const char *Name)

注意 const 。

C++ 里，字符串字面量是常量字符串，不能匹配 char * 参数，只能用 const char *。

Answer 2

应使用：

double &operator[](const string &Name)