c – 链接器错误LNK2001

当我尝试创建一个对象时,我在Visual studio中得到一个LNK2001错误,这是我认为的构造函数的问题,因为更改构造函数会更改错误.

Customer bob("Bob","25 Bob Lane","01bob82","M","bob/bob/bob");

这一行给出了这个错误：@H_607_5@

Error   1   error LNK2001: unresolved external symbol "public: __thiscall
Customer::Customer(class std::basic_String<char,struct std::char_Traits<char>,class
std::allocator<char> >,class std::basic_String<char,class 
std::allocator<char> >,class
std::allocator<char> >)" (??0Customer@@QAE@V?$basic_String@DU?$char_Traits@D@std@@V?
$allocator@D@2@@std@@0000@z)    D:\DropBox\Work\C++\C++ Assignment\C++ 
Assignment\driver.obj

包含构造函数的Customer类：@H_607_5@

#pragma once
#include "l_list.h"
#include "Account.h"
#include <String>

using namespace std;

class Customer
{
private:
    l_list<Account> accounts;
    String name;
    String address;
    String telNo;
    String sex;
    String dob;

public:
    Customer(String name,String address,String telNo,String sex,String dob)
    {
        Customer::name = name;
        Customer::address = address;
        Customer::telNo = telNo;
        Customer::sex = sex;
        Customer::dob = dob;
    }

    void createAccount()
    {
        cout << "what type of account?";

    }

};