编译出错：redefinition of ...previous definition of ..

[weixin_38052782]

Userinfo.h:5: redefinition of `class Userinfo'Userinfo.h:5: previous definition of `class Userinfo'Userinfo.h:5: confused by earlier errors, bailing out在定义一个类Userinfo时出现了以上错误#include <QtCore>#include <QtNetwork>class Userinfo{  Q_OBJECT    private:     QString *username;    QString *password;    QHostAddress *serverIP;    int port;    QTcpSocket *tcpSocket;    public:    Userinfo(QString * username=0, QString * pwd=0, QHostAddress * serverIP=0, int port=0, QTcpSocket *tcpSocket=0);      void getUsername(const QString * username);    void getPassword(const QString * pwd);    void getServerIP(const QHostAddress * serverIP);        void getPort(int port);        void getTcpSocket(const QTcpSocket * tcpSocket);    }; 请高手指教，谢谢！

[weixin_38095649]

很可能是头文件重复包含。

[weixin_38091234]

谢谢指教！！！，问题解决了

[weixin_38067396]

有没有可能会是跟库中的接口有冲突，毕竟你不是重载

[weixin_38063515]

C/C++ 基本问题，头文件重复包含了最好给你的头文件加保护符#ifndef xxxx#define xxxx....#endif