# include<iostream>
using namespace std;

class CUser{
private:
        char *L_UserName;
        char *L_UserPassword;
public:
       CUser(){
            strcpy(this->L_UserName,"SUNKAI");
            strcpy(this->L_UserPassword,"123");
       }
       char *GetUserName()const{
            return L_UserName;
       }
       char *GetUserPassword()const{
            return L_UserPassword;
       }
};

void main(){
     CUser user;
     cout<<user.GetUserName()<<endl;
     cout<<user.GetUserPassword()<<endl;
}
以上程序在编译是也没出错，可是在运行时却说什么ClassObject.exe遇到关闭问题，出现不了预想的结果。

char *L_UserName;
char *L_UserPassword;

在构造函数先初始化指针吧

# include<iostream>
using namespace std;
 
class CUser{
private:
        char *L_UserName;
        char *L_UserPassword;
public:
       CUser(){
//           strcpy(this->L_UserName,"SUNKAI");
//           strcpy(this->L_UserPassword,"123");
           L_UserName = "SUNKAI";
           L_UserPassword = "123";
       }
       char *GetUserName()const{
           return L_UserName;
       }
       char *GetUserPassword()const{
           return L_UserPassword;
       }
};
 
void main(){
    CUser user;
    cout<<user.GetUserName()<<endl;
    cout<<user.GetUserPassword()<<endl;
}

L_UserName和L_UserPassword指针在使用前必须申请内存，否则在赋值时没有存放位置。修改后代码如下：
#include<iostream>
using namespace std;
 
class CUser{
private:
        char *L_UserName;
        char *L_UserPassword;
public:
       CUser(){
           L_UserName = new char[100];
           L_UserPassword = new char[100];
            strcpy(this->L_UserName,"SUNKAI");
            strcpy(this->L_UserPassword,"123");
       }
       char *GetUserName()const{
            return L_UserName;
       }
       char *GetUserPassword()const{
            return L_UserPassword;
       }
};
 
int main(){
     CUser user;
     cout<<user.GetUserName()<<endl;
     cout<<user.GetUserPassword()<<endl;
}

不用申请内存也行，指针是顺序存放的

顶

换个工作空间试试看．

谁跟你说可以不申请内存的？当然要申请！
用四楼的可以解决问题，但是要加一个析构函数：

CUser::~CUser()
{
    delete [] L_UserName;
    delete [] L_UserPassword;
}

否则会发生内存泄露！