Question

我一直试图传递一个类的实例＆＃34; person＆＃34;一个函数来打印该列表的包含，但我不确定如何解决错误。

Program::Program()
{

list<Person*> people;
list<Person*>::iterator iter;

cout << "Hello, Please Enter The Number Of People " << endl;
cin >> Maxpeople;
{
    for (int i = 0; i < Maxpeople; i++)
    {
        Person *p1 = new Person();

        cin.ignore();
        cout << "Hello " << endl;
        cout << "Please Enter The Name Of Person " << i + 1 << endl;
        getline(cin, input);
        p1->setname(input);

        people.push_back(p1);
    }
    Program P;

    P.print(people, iter); <----Call Print Function

    getline(cin, input);
}

 //header
 void print(list<Person*> p, list<Person*>::iterator i);
 //header

void Program::print(list<Person*> p, list<Person*>::iterator i)
{
    for (i = p.begin(); i != p.end(); i++)
    {
        cout << (*i)->getname() << endl;
    }
}

严重级代码描述项目文件行抑制状态错误C2061语法错误：标识符＆＃39; list＆＃39; App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ stdafx.h 26
错误C2061语法错误：标识符＆＃39; list＆＃39; App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ stdafx.h 26
错误C2511＆＃39; void Program :: print（std :: list＆gt;，std :: _ List_iterator＆gt;＆gt;）＆＃39;：重载的成员函数未在＆＃39; Program＆＃39;中找到App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ app1.cpp 55
错误C2061语法错误：标识符＆＃39; list＆＃39; App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ stdafx.h 26

我相信看错误c2061 / 2511我没有正确定义列表的类型。非常感谢任何帮助，谢谢。

---更新一个-----

严重级代码描述项目文件行抑制状态错误C2065＆＃39; Person＆＃39;：未声明的标识符App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ stdafx.h 26
错误C2059语法错误：＆＃39;＆gt;＆＃39; App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ stdafx.h 26
错误C2955＆＃39; std :: list＆＃39;：使用类模板需要模板参数列表App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ stdafx.h 26个
错误C2976＆＃39; std :: list＆＃39;：模板参数太少App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ stdafx.h 26 警告C4717＆＃39; Program :: Program＆＃39;：递归所有控制路径，函数将导致运行时堆栈溢出App1 c：\ users \ alasdair \ documents \ visual studio 2015 \ projects \ drawstudio \ c ++ fun \ app1 \ app1.cpp 53

Answer 1

所以我弄清楚我做错了什么（虽然我使用的是字符串列表而不是自定义类），因为回复的人说我没有正确地通过引用传递。对于任何感兴趣的人，这是我的代码。显然，您可以使用javax.servlet.jsp.JspException: ServletException来检索下一个值。非常感谢你的帮助。

====主要====

pop_front()

====部首====

#include "stdafx.h"

int main()
{
    std::string input = "";

    std::list<std::string> people;
    people.push_back("Harry");
    printlist(&people);

    std::cin >> input;
}

void printlist(std::list<std::string> *mylist)
{
    std::list<std::string>::iterator myiterator;

    for (myiterator = mylist->begin(); myiterator != mylist->end();myiterator++)
    {
        std::cout << mylist->front() << std::endl;
    }
}

c ++在函数参数中传递类列表

1 个答案: