qt学生管理系统（一）-Toy模板网

这篇具有很好参考价值的文章主要介绍了qt学生管理系统（一）。希望对大家有所帮助。如果存在错误或未考虑完全的地方，请大家不吝赐教，您也可以点击"举报违法"按钮提交疑问。

主界面：

qt学生信息管理系统,qt,ui,开发语言

添加页面dialog：

qt学生信息管理系统,qt,ui,开发语言

dialog头文件：

#ifndef DIALOG_H
#define DIALOG_H
#include"student.h"
#include <QDialog>
#include<QCloseEvent>
namespace Ui {
class Dialog;
}

class Dialog : public QDialog
{
    Q_OBJECT

public:
    void closeEvent(QCloseEvent *event);
    explicit Dialog(QWidget *parent = nullptr);
    ~Dialog();
public slots:
    void on_pushButtonti_clicked();

    void on_pushButtonqv_clicked();

signals:
   void  MyUpdate(Student* pStu);
private:
    Ui::Dialog *ui;
};


#endif // DIALOG_H

dialog.cpp

#include "dialog.h"
#include "ui_dialog.h"
#include<QString>
#include"student.h"
#include<QMessageBox>
#include<QCloseEvent>
Dialog::Dialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog)
{
    ui->setupUi(this);
}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::on_pushButtonti_clicked()
{
//获取单号输入框的内容
    QString name=ui->QlineEditxingming->text();
    QString id=ui->lineEditxuehao->text();
    QString sex=ui->lineEditnianling->text();
    QString age=ui->lineEditxingbie->text();
    QString chinese=ui->lineEdityuwen->text();
    QString math=ui->lineEditshuxue->text();
    QString english=ui->lineEdityingyu->text();

 //判断数据是否完整
if(id!=""&&name!=""&&sex!=""&&age!=""&&chinese!=""&&math!=""&&english!=""){
 //创建学生对象
    Student* pStu=new Student;
    pStu->SetId(id);
    pStu->SetName(name);
    pStu->SetSex(sex);
    pStu->SetAge(age);
    pStu->SetChinese(chinese);
    pStu->SetMath(math);
    pStu->SetEnglish(english);
    //要将数据发给widget
    emit MyUpdate(pStu);
}else{
QMessageBox::warning(this,"提示","请将数据录入完整");
}
}
void Dialog::on_pushButtonqv_clicked()
{
    this->close();
}
void Dialog::closeEvent(QCloseEvent * event){
    QMessageBox msgBox;
        msgBox.setText("提示");
        msgBox.setInformativeText("确认退出?");
        msgBox.setStandardButtons(QMessageBox::Ok | QMessageBox::Cancel);
        msgBox.setDefaultButton(QMessageBox::Ok);
        int ret = msgBox.exec();
        if(ret == QMessageBox::Ok){
            //若用户点击确认，则接收这个事件,当前窗口会关闭
            event->accept();
        }else{
            //若用户点击取消，则忽略这个事件，当前窗口不会关闭
            event->ignore();
        }
};

ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include  "dialog.h"
#include"student.h"
#include"control.h"
#include<QCloseEvent>
QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

public:
    void ShowItem(Student* pStu);
    void ShowList();
     void closeEvent(QCloseEvent *event);
private slots:

    void on_pushButtonadd_clicked();
    void on_MyUpdate(Student* pStu);

    void on_pushButtonsave_clicked();

private:
    Ui::Widget *ui;
   Dialog* pDialog;
   control* pcontrol;
};
#endif // WIDGET_H

widget.cpp

#include "widget.h"
#include "ui_widget.h"
#include  "dialog.h"
#include<QTableWidget>
#include<QMessageBox>
#include"control.h"
Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
    setWindowTitle("学生管理系统");
    pDialog=nullptr;
    pcontrol=control::createctrl();
    pcontrol->FileToList();
   ShowList();
}

Widget::~Widget()
{
    delete ui;
    if(pDialog){
        delete pDialog;
        pDialog=nullptr;
    }
}



void Widget::on_pushButtonadd_clicked()
{
    if(pDialog){
        delete  pDialog;
        pDialog=nullptr;
    }
    pDialog=new Dialog(this);
    pDialog->setWindowTitle("添加学生信息");
    QObject::connect(pDialog,&Dialog::MyUpdate,this,&Widget::on_MyUpdate);
    pDialog->exec();
}

void Widget::on_MyUpdate(Student* pStu){
//将数据存入管理类的链条
pcontrol->additem(pStu);


//将数据显示到表各
 ShowItem(pStu);

};
void  Widget::ShowItem(Student* pStu){

    //获得总行数+1
    int rows=ui->tableWidget->rowCount();

    //设置行数
     ui->tableWidget->setRowCount(rows+1);

    //将信息显示到表格上
    ui->tableWidget->setItem(rows,0,new QTableWidgetItem(pStu->GetId()));
    ui->tableWidget->setItem(rows,1,new QTableWidgetItem(pStu->GetSex()));
    ui->tableWidget->setItem(rows,2,new QTableWidgetItem(pStu->GetAge()));
    ui->tableWidget->setItem(rows,3,new QTableWidgetItem(pStu->GetName()));
    ui->tableWidget->setItem(rows,4,new QTableWidgetItem(pStu->GetChinese()));
    ui->tableWidget->setItem(rows,5,new QTableWidgetItem(pStu->GetMath()));
    ui->tableWidget->setItem(rows,6,new QTableWidgetItem(pStu->GetEnglish()));


};


void Widget::on_pushButtonsave_clicked()
{
    pcontrol->ListToFile();
}






void Widget::ShowList(){
 auto ite=pcontrol->getlist().begin();
 while(ite!=pcontrol->getlist().end()){
     ShowItem(*ite);
     ite++;
 }
};

void Widget::closeEvent(QCloseEvent * event){
    QMessageBox::StandardButton but=QMessageBox::question(this,"提示","是否保存数据");
    if(but==QMessageBox::Yes){
        pcontrol->ListToFile();
    }
};

student.h

#ifndef STUDENT_H
#define STUDENT_H
#include<QString>

class Student
{
public:
    Student();
private:
    QString strId;
    QString strName;
    QString strAge;
    QString strSex;
    QString strChinese;
    QString strMath;
    QString strEnglish;

public:
   QString GetId() const;
   QString GetName() const;
   QString GetAge() const;
   QString GetSex() const;
   QString GetChinese() const;
   QString GetMath() const;
   QString GetEnglish() const;
  void SetId(const QString& id);
  void SetName(const QString& name);
  void SetAge(const QString& age);
  void SetSex(const QString& sex);
  void SetChinese(const QString& chinese);
  void SetMath(const QString& math);
  void SetEnglish(const QString& english);
};

#endif // STUDENT_H

student.cpp

#include "student.h"

Student::Student()
{
    strId="";
    strName="";
    strAge="";
    strSex="";
    strChinese="";
    strMath="";
    strEnglish="";
}


QString Student::GetId() const
{
    return  strId;
};
QString Student::GetName() const{
    return strName;
};
QString Student::GetAge() const{
    return strAge;
};
QString Student::GetSex() const{
    return strSex;
};
QString Student::GetChinese() const{
    return strChinese;
};
QString Student::GetMath() const{
    return strMath;
};
QString Student::GetEnglish() const{
    return strEnglish;
};
void Student::SetId(const QString& id){
    strId=id;

};
void Student::SetName(const QString& name){
    strName=name;
};
void Student::SetAge(const QString& age){
    strAge=age;
};
void Student::SetSex(const QString& sex){
strSex=sex;

};
void Student::SetChinese(const QString& chinese){
strChinese=chinese;

};
void Student::SetMath(const QString& math){

    strMath=math;

};
void Student::SetEnglish(const QString& english){

    strEnglish=english;


};

control.h

#ifndef CONTROL_H
#define CONTROL_H
#include<list>
#include"student.h"
#include<fstream>
using namespace std;
#define PATH "..\\res\\Student.txt"
class control
{
private:
    static control *pcontrol;
private:
    control();
    control(control &c);
    list<Student*> lst;
public:
    ~control();

public:
    static control *createctrl();
    list<Student*> & getlist();
    void additem(Student* pStu);
    void deleteitem(QString id);

    void ListToFile();
    void FileToList();
   };

#endif // CONTROL_H

control.cpp文章来源地址https://www.toymoban.com/news/detail-585952.html

#include "control.h"
#include<QString>

control::control()
{

} ;
control::control(control &c){

};
control::~control(){
auto ite=lst.begin();
while (ite!=lst.end()) {
    delete *ite;
    ite++;
}
};

 control* control::pcontrol=nullptr;

 control* control::createctrl(){

    if(pcontrol==nullptr){
        pcontrol=new control;
    }
    return pcontrol;
};
 list<Student*>& control::getlist(){
     return lst;
 }
 void control::additem(Student *pStu){
     lst.push_back(pStu);
 }
 void control::deleteitem(QString id){
     auto ite=lst.begin();
     while(ite!=lst.end()){
         if((*ite)->GetId()==id){
             delete *ite;
             lst.erase(ite);
             break;
         }
         ite++;
     }

 }

 void control::ListToFile(){
ofstream os;
os.open(PATH);
auto ite=lst.begin();
while(ite!=lst.end()){
    string id=(*ite)->GetId().toStdString();
     string name=(*ite)->GetName().toStdString();
      string age=(*ite)->GetAge().toStdString();
       string sex=(*ite)->GetSex().toStdString();
        string chinese=(*ite)->GetChinese().toStdString();
         string math=(*ite)->GetMath().toStdString();
          string english=(*ite)->GetEnglish().toStdString();
         os<<id<<""<<name<<""<<age<<""<<sex<<""<<chinese<<""
          <<math<<""<<english<<endl;
             ite++;
 };
os.close();
 }
 void control::FileToList(){
   ifstream is;

 is.open(PATH);
 string id,name,age,sex,chinese,math,english;
 while(is>>id>>name>>age>>sex>>chinese>>math>>english){
Student* pStu=new Student;
pStu->SetId(QString::fromStdString(id));
pStu->SetName(QString::fromStdString(name));
pStu->SetAge(QString::fromStdString(age));
pStu->SetSex(QString::fromStdString(sex));
pStu->SetChinese(QString::fromStdString(chinese));
pStu->SetMath(QString::fromStdString(math));
pStu->SetEnglish(QString::fromStdString(english));
additem(pStu);
 };
 is.close();
}

到了这里，关于qt学生管理系统（一）的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！