请大家帮看下这个小程序

[熊猫过隙]

IDE:VC++ 6.0 (sp6)

#include<iostream>
#include<string>

using namespace std;

class Student
{
public:
	Student(int n,string nam,char s)	//定义构造函数
	{
		num = n;
		name = nam;
		sex = s;
		
		cout << "Constructor called." << endl;
	}
	~Student()	//定义析构函数
	{
		cout << "Destructor called." << endl;
	}
	void display()
	{
		cout << "num:" << num << endl;
		cout << "name:" << name << endl;
		cout << "sex:" << sex << endl << endl;
	}

private:
	int num;
	char name[10];
	char sex;
};

int main()
{
	Student stud1(10010,"Wang_li",'f');	//建立对象stud1
	stud1.display();	//输出stud1的数据

	Student stud2(10011,"Zhang_fun",'m');
	stud2.display();

	return 0;
}

编译后提示的错误是
--------------------Configuration: test2 - Win32 Debug--------------------
Compiling...
test2.cpp
D:\alexa\VC\test2\test2.cpp(12) : error C2440: '=' : cannot convert from 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >' to 'char [10]'
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
执行 cl.exe 时出错.

test2.exe - 1 error(s), 0 warning(s)


不是string重载了赋值操作符了吗，还有出现这种错误？

[goodname]

num = n;
strcpy(name,nam.c_str());//自行确保不要溢出
sex = s;

string的重载了赋值操作符正好和你写的反过来

[老邓]

#include<iostream>
#include<string>
#include <stdio.h>
using namespace std;

class Student
{
public:
    Student(int n,string nam,char s)    //定义构造函数
    {
        num = n;
        //name = nam;
        strcpy(name, nam.c_str());
        sex = s;
        
        cout << "Constructor called." << endl;
    }
    ~Student()    //定义析构函数
    {
        cout << "Destructor called." << endl;
    }
    void display()
    {
        cout << "num:" << num << endl;
        cout << "name:" << name << endl;
        cout << "sex:" << sex << endl << endl;
    }

private:
    int num;
    char name[10];
    char sex;
};

int main()
{
    Student stud1(10010,"Wang_li",'f');    //建立对象stud1
    stud1.display();    //输出stud1的数据

    Student stud2(10011,"Zhang_fun",'m');
    stud2.display();

    return 0;
}

输出：
Constructor called.
num:10010
name:Wang_li
sex:f

Constructor called.
num:10011
name:Zhang_fun
sex:m

Destructor called.
Destructor called.

Process returned 0 (0x0) execution time : 0.046 s
Press any key to continue.

[AlwaysSLH]

name = nam;
改为
strcpy(name,nam.c_str());

[猫已经找不回了]

class Student
{
public:
    Student(int n,string nam,char s)    //定义构造函数
    {
		const char *na;
        num = n;
        na = nam.c_str();     //用c_str操作
		memcpy(name,na,strlen(na) );
        sex = s;
        
        cout << "Constructor called." << endl;
    }
    ~Student()    //定义析构函数
    {
        cout << "Destructor called." << endl;
    }
    void display()
    {
        cout << "num:" << num << endl;
        cout << "name:" << name << endl;
        cout << "sex:" << sex << endl << endl;
    }

private:
    int num;
    char name[10];
    char sex;
};

int main()
{
    Student stud1(10010,"Wang_li",'f');    //建立对象stud1
    stud1.display();    //输出stud1的数据

    Student stud2(10011,"Zhang_fun",'m');
    stud2.display();

    return 0;
}

[猫已经找不回了]

memcpy(name,na,strlen(na)+1 );

这样保证C风格字符串