update 基本UI界面 基本增删改逻辑

StudentManager.pro

@@ -20,8 +20,7 @@ SOURCES += \
     mainwindow.cpp
 
 HEADERS += \
-    mainwindow.h \
+    mainwindow.h
-    student.h
 
 
 # Default rules for deployment.

StudentManager.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.11.1, 2025-12-17T16:06:52. -->
+<!-- Written by QtCreator 4.11.1, 2025-12-18T17:41:46. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
@@ -59,6 +59,15 @@
     <value type="QString">-fno-delayed-template-parsing</value>
    </valuelist>
    <value type="bool" key="ClangCodeModel.UseGlobalConfig">true</value>
+   <valuemap type="QVariantMap" key="ClangTools">
+    <value type="bool" key="ClangTools.BuildBeforeAnalysis">true</value>
+    <value type="QString" key="ClangTools.DiagnosticConfig">Builtin.TidyAndClazy</value>
+    <value type="int" key="ClangTools.ParallelJobs">16</value>
+    <valuelist type="QVariantList" key="ClangTools.SelectedDirs"/>
+    <valuelist type="QVariantList" key="ClangTools.SelectedFiles"/>
+    <valuelist type="QVariantList" key="ClangTools.SuppressedDiagnostics"/>
+    <value type="bool" key="ClangTools.UseGlobalSettings">true</value>
+   </valuemap>
   </valuemap>
  </data>
  <data>
@@ -71,7 +80,7 @@
    <value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
    <value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
    <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">C:/Users/wq/Desktop/build-StudentManager-Desktop_Qt_5_14_2_MinGW_32_bit-Debug</value>
+    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">D:/UGit/build-StudentManager-Desktop_Qt_5_14_2_MinGW_32_bit-Debug</value>
     <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
      <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
       <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
@@ -300,7 +309,7 @@
     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
     <value type="QString" key="RunConfiguration.WorkingDirectory"></value>
-    <value type="QString" key="RunConfiguration.WorkingDirectory.default">C:/Users/wq/Desktop/build-StudentManager-Desktop_Qt_5_14_2_MinGW_32_bit-Debug</value>
+    <value type="QString" key="RunConfiguration.WorkingDirectory.default">D:/UGit/build-StudentManager-Desktop_Qt_5_14_2_MinGW_32_bit-Debug</value>
    </valuemap>
    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
   </valuemap>
@@ -531,19 +540,19 @@
     </valuelist>
     <value type="int" key="PE.EnvironmentAspect.Base">2</value>
     <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
-    <value type="QString" key="ProjectExplorer.CustomExecutableRunConfiguration.Executable"></value>
+    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:D:/UGit/StudentManager/StudentManager.pro</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
+    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey">D:/UGit/StudentManager/StudentManager.pro</value>
-    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
     <value type="QString" key="RunConfiguration.Arguments"></value>
     <value type="bool" key="RunConfiguration.Arguments.multi">false</value>
     <value type="QString" key="RunConfiguration.OverrideDebuggerStartup"></value>
     <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
     <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
+    <value type="bool" key="RunConfiguration.UseLibrarySearchPath">true</value>
     <value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
     <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
     <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
     <value type="QString" key="RunConfiguration.WorkingDirectory"></value>
-    <value type="QString" key="RunConfiguration.WorkingDirectory.default"></value>
+    <value type="QString" key="RunConfiguration.WorkingDirectory.default">C:/Users/wq/Desktop/build-StudentManager-Desktop_Qt_5_14_2_MinGW_64_bit-Debug</value>
    </valuemap>
    <value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
   </valuemap>

main.cpp

@@ -5,6 +5,7 @@
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
+    a.setWindowIcon(QIcon("D:/UGit/StudentManager/favicon.ico")); // 设置全局icon文件
     MainWindow w;
     w.show();
     return a.exec();

mainwindow.cpp

@@ -1,123 +1,289 @@
 #include "mainwindow.h"
+#include <QHBoxLayout>
+#include <QVBoxLayout>
+#include <QInputDialog>
 #include <QMessageBox>
+#include <QHeaderView>
+#include <QLabel>
+#include <QMenu>
 #include <QDebug>
+#include <QMenuBar>
+//#include <QFile>
+//#include <QTextStream>
+//#include <QFileDialog>
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
+{
+    setupUI();
+}
+
+MainWindow::~MainWindow() {}
+
+void MainWindow::setupUI()
 {
     QWidget *central = new QWidget(this);
     setCentralWidget(central);
 
-    // 表格
+    // 顶部菜单栏
-    tableView = new QTableView(this);
+    QMenuBar *menuBar = this->menuBar();
-    model = new QStandardItemModel(this);
-    model->setHorizontalHeaderLabels({"学号", "姓名", "成绩"});
-    tableView->setModel(model);
 
-    // 输入框
+    fileMenu = menuBar->addMenu("文件(&F)"); // 快捷键 alt + F
-    idEdit = new QLineEdit();
+    editMenu = menuBar->addMenu("编辑(&E)"); // 快捷键 alt + E
-    idEdit->setPlaceholderText("学号"); // 占位符 && 水印文字
+    // TODO
-    nameEdit = new QLineEdit();
-    nameEdit->setPlaceholderText("姓名");
-    scoreEdit = new QLineEdit();
-    scoreEdit->setPlaceholderText("成绩");
 
-    // 按钮
+    // 左侧班级树控件
-    addButton = new QPushButton("添加");
+    tree = new QTreeWidget;
-    deleteButton = new QPushButton("删除");
+    tree->setHeaderLabel("班级列表");
+    tree->setContextMenuPolicy(Qt::CustomContextMenu);
+
+    // 显示学生信息控件
+    table = new QTableWidget;
+    table->setColumnCount(5);
+    table->setHorizontalHeaderLabels({"姓名", "性别", "年龄", "学号", "电话"});
+    table->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
+
+    // 输入学生信息控件
+    nameEdit = new QLineEdit;
+    genderEdit = new QLineEdit;
+    ageEdit = new QLineEdit;
+    idEdit = new QLineEdit;
+    phoneEdit = new QLineEdit;
+
+    addBtn = new QPushButton("新增学生");
+    delBtn = new QPushButton("删除学生");
 
     // 布局
-    // Edit水平布局
+    QVBoxLayout *rightLayout = new QVBoxLayout; // 垂直布局
-    QHBoxLayout *formLayout_Edit = new QHBoxLayout();
+    rightLayout->addWidget(new QLabel("姓名")); // index 0
-    formLayout_Edit->addWidget(idEdit);
+    rightLayout->addWidget(nameEdit);           // index 1
-    formLayout_Edit->addWidget(nameEdit);
+    rightLayout->addWidget(new QLabel("性别"));
-    formLayout_Edit->addWidget(scoreEdit); // 使各个Edit之间水平分布
+    rightLayout->addWidget(genderEdit);
-
+    rightLayout->addWidget(new QLabel("年龄"));
-    // Button水平布局
+    rightLayout->addWidget(ageEdit);
-    QHBoxLayout *formLayout_button = new QHBoxLayout();
+    rightLayout->addWidget(new QLabel("学号"));
-    formLayout_button->addWidget(addButton);
+    rightLayout->addWidget(idEdit);
-    formLayout_button->addWidget(deleteButton);
+    rightLayout->addWidget(new QLabel("电话"));
-
+    rightLayout->addWidget(phoneEdit);
-    // 垂直布局
+    rightLayout->addWidget(addBtn);
-    QVBoxLayout *mainLayout = new QVBoxLayout();
+    rightLayout->addWidget(delBtn);
-    mainLayout->addWidget(tableView);         // index 0：垂直布局中第0个元素（表格）
+    rightLayout->addStretch(); // 设置可伸缩对齐
-    mainLayout->addLayout(formLayout_Edit);   // index 1：垂直布局中第1个元素（水平排列的输入框/按钮）
+
-    mainLayout->addLayout(formLayout_button); // index 2：垂直布局中第2个元素 （按钮）
+    QHBoxLayout *mainLayout = new QHBoxLayout(central); // 水平布局
-
+    mainLayout->addWidget(tree, 1);                     // index 1
-    // 控制大小
+    mainLayout->addWidget(table, 3);                    // index 3
-    mainLayout->setStretch(0, 1);                   // 表格撑满
+    mainLayout->addLayout(rightLayout, 2);              // index 2
-    mainLayout->setStretch(1, 0);                   // 输入区最小
+
-    mainLayout->setContentsMargins(10, 10, 10, 10); // 让每一个控件都与边缘保持10个像素的距离
+    // 指定信号 槽
-
+    // 右键点击弹出增删改班级窗口
-    central->setLayout(mainLayout);
+    connect(tree, &QTreeWidget::customContextMenuRequested, // 右键点击信号
-
+            this, &MainWindow::showTreeMenu);
-    tableView->setSizePolicy(
+    // 左键点击班级名 刷新中间的学生信息
-        QSizePolicy::Expanding,
+    connect(tree, &QTreeWidget::itemClicked, // 左键点击信号
-        QSizePolicy::Expanding);
+            this, &MainWindow::onClassClicked);
-
+    // 左键点击执行添加学生逻辑
-    // 信号槽
+    connect(addBtn, &QPushButton::clicked,
-    connect(addButton, &QPushButton::clicked, this, &MainWindow::on_addButton_clicked);
+            this, &MainWindow::addStudent);
-    connect(deleteButton, &QPushButton::clicked, this, &MainWindow::on_deleteButton_clicked);
+    // 左键点击执行删除学生逻辑
+    connect(delBtn, &QPushButton::clicked,
+            this, &MainWindow::deleteStudent);
+    // 点击学生单元格 回显学生信息
+    connect(table, &QTableWidget::cellClicked, // 单元格点击信号
+            this, &MainWindow::tableItemClicked);
 
     // 确认窗口大小
     resize(900, 600);
     setMinimumSize(800, 500);
 }
 
-// 这个析构还必须得有
+void MainWindow::showTreeMenu(const QPoint &pos)
-MainWindow::~MainWindow()
 {
+    // 右键点击 后触发这个函数
+    QMenu menu;
+    QAction *add = menu.addAction("新建班级");
+    QAction *del = menu.addAction("删除班级");
+    QAction *ren = menu.addAction("重命名班级");
+
+    // 显示右键菜单 并获取用户选择
+    QAction *ret = menu.exec(tree->viewport()->mapToGlobal(pos));
+
+    // 执行用户选择的操作
+    if (ret == add)
+        addClass();
+    else if (ret == del)
+        deleteClass();
+    else if (ret == ren)
+        renameClass();
 }
 
-void MainWindow::on_addButton_clicked()
+void MainWindow::addClass()
 {
-    // 添加学生信息的逻辑
+    // 弹出对话框 输入班级名称
-    Student stu;
+    QString name = QInputDialog::getText(this, "新建班级", "班级名称");
-    stu.id = idEdit->text();
+    if (name.isEmpty())
-    stu.name = nameEdit->text();
+        return;
-    stu.score = scoreEdit->text().toDouble();
+    // 检查班级是否已存在
-    //    qDebug() << "id : " << stu.id
+    if (classData.contains(name))
-    //             << "name : " << stu.name
-    //             << "score : " << stu.score;
-
-    //     判空F
-    if (stu.id.isEmpty() || stu.name.isEmpty())
     {
-        QMessageBox::warning(this, "错误", "学号和姓名不能为空！");
+        QMessageBox::warning(this, "错误", "班级已存在,请重新输入");
         return;
     }
-    students.push_back(stu);
+    // 将新班级添加到数据结构和树控件中
+    // 由于是新班级，初始化为空列表
+    classData[name] = {};
+    // 在树控件中添加新节点
+    // 数据与UI同步更新
+    tree->addTopLevelItem(new QTreeWidgetItem({name}));
+}
 
-    // 刷新表格
+void MainWindow::deleteClass()
-    refreshTable();
+{
+    // 获取当前选中班级 // auto == QTreeWidgetItem*
+    auto item = tree->currentItem();
+    if (!item)
+        return;
+    QString name = item->text(0); // 获取选中项的班级名称
+    // 弹出确认对话框
+    if (QMessageBox::question(this, "确认", "确定删除班级？") == QMessageBox::Yes)
+    {
+        // 从数据结构和树控件中删除班级
+        classData.remove(name);
+        // 数据与UI同步更新
+        delete item;            // 避免内存泄漏
+        table->clearContents(); // 清理学生信息内容
+        table->setRowCount(0);  // 清空表格行数
+    }
+    QMessageBox::information(this, "提示", "班级已删除");
+}
 
-    // 刷新输入框内容
+void MainWindow::renameClass()
-    idEdit->clear();
+{
-    nameEdit->clear();
+    // 获取当前选中班级
-    scoreEdit->clear();
+    auto item = tree->currentItem();
+    if (!item)
+        return;
+    // 获取旧班级名称
+    QString oldName = item->text(0);
+    // 弹出对话框 输入新名称
+    QString newName = QInputDialog::getText(this, "重命名", "新名称");
+    // 检查新名称有效性
+    if (newName.isEmpty())
+        return;
+    if (classData.contains(newName))
+        QMessageBox::warning(this, "提示", "班级已存在");
+    // 更新数据结构和树控件
+    classData[newName] = classData.take(oldName); // 从数据结构中移除旧键值对,并返回旧名称关联的值,赋给新名称
+    item->setText(0, newName);
+}
+
+void MainWindow::onClassClicked(QTreeWidgetItem *item)
+{
+    // 用户点击班级节点后触发此函数
+    Q_UNUSED(item)  // 避免未使用参数警告
+    refreshTable(); // 刷新右侧学生表格内容
+}
+
+QString MainWindow::currentClass() const // 只读成员函数
+{
+    // 获取当前选中班级名称 auto == QTreeWidgetItem*
+    auto item = tree->currentItem();
+    return item ? item->text(0) : "";
 }
 
-void MainWindow::on_deleteButton_clicked()
+void MainWindow::refreshTable()
+{
+    QString cls = currentClass();
+    table->setRowCount(0); // 先清空表格内容
+    if (!classData.contains(cls))
+        return; // 班级不存在
+
+    auto &list = classData[cls];     // 获取当前班级的学生列表引用
+    table->setRowCount(list.size()); // 设置表格行数为学生数量
+    for (int i = 0; i < list.size(); ++i)
+    {
+        // 遍历学生列表 填充表格内容
+        table->setItem(i, 0, new QTableWidgetItem(list[i].name));
+        table->setItem(i, 1, new QTableWidgetItem(list[i].gender));
+        table->setItem(i, 2, new QTableWidgetItem(QString::number(list[i].age)));
+        table->setItem(i, 3, new QTableWidgetItem(list[i].id));
+        table->setItem(i, 4, new QTableWidgetItem(list[i].phone));
+    }
+}
+
+void MainWindow::addStudent()
 {
-    int row = tableView->currentIndex().row();
+    QString cls = currentClass();
-    if (row < 0)
+    if (cls.isEmpty())
+        return;
+
+    Student s;
+    s.name = nameEdit->text();
+    s.gender = genderEdit->text();
+    s.id = idEdit->text();
+    s.phone = phoneEdit->text();
+
+    // 处理年龄：用toInt的第二个参数判断是否为有效数字
+    bool isAgeValid; // 检测是否转换成功
+    int age = ageEdit->text().toInt(&isAgeValid);
+
+    if (!isAgeValid || age <= 0 || age > 120) // 年龄有效条件：转换成功 + 年龄在合理范围
+    {
+        QMessageBox::warning(this, "错误", "年龄必须是1-120的整数");
         return;
+    }
+    s.age = age; // 只有年龄有效，才赋值给结构体
 
-    students.remove(row);
+    // qDebug() << s.name << s.id << s.age << s.phone << s.gender;
-    // 刷新表格
+    if (s.name.isEmpty() || s.gender.isEmpty() || s.id.isEmpty() || s.phone.isEmpty())
+    {
+        QMessageBox::warning(this, "错误", "信息不完整(姓名、性别、学号、电话不能为空)");
+        return;
+    }
+
+    for (auto &st : classData[cls])
+    {
+        if (st.id == s.id)
+        {
+            QMessageBox::warning(this, "错误", "学号重复");
+            return;
+        }
+    }
+
+    classData[cls].append(s); // 将新学生追加到当前班级的学生列表
     refreshTable();
+
+    // 刷新输入框内容
+    nameEdit->clear();
+    genderEdit->clear();
+    ageEdit->clear();
+    idEdit->clear();
+    phoneEdit->clear();
 }
 
-void MainWindow::refreshTable()
+void MainWindow::deleteStudent()
 {
-    model->removeRows(0, model->rowCount());
+    QString cls = currentClass();  // 拿到班级名称
+    int row = table->currentRow(); // 获取当前选中行
+    if (cls.isEmpty() || row < 0)
+        return;
 
-    for (const Student &stu : students)
+    if (QMessageBox::question(this, "确认", "删除该学生？") == QMessageBox::Yes)
     {
-        QList<QStandardItem *> row;
+        classData[cls].removeAt(row);
-        row << new QStandardItem(stu.id)
+        refreshTable();
-            << new QStandardItem(stu.name)
-            << new QStandardItem(QString::number(stu.score));
-        model->appendRow(row);
     }
 }
+
+void MainWindow::tableItemClicked(int row, int) // 点击学生信息进行回显
+{
+    QString cls = currentClass();
+    if (cls.isEmpty())
+        return;
+    auto s = classData[cls][row];
+
+    nameEdit->setText(s.name);
+    genderEdit->setText(s.gender);
+    ageEdit->setText(QString::number(s.age));
+    idEdit->setText(s.id);
+    phoneEdit->setText(s.phone);
+}

mainwindow.h

@@ -2,21 +2,21 @@
 #define MAINWINDOW_H
 
 #include <QMainWindow>
-#include <QVector>
+#include <QTreeWidget>
-#include <QStandardItemModel>
+#include <QTableWidget>
-#include <QTableView>
 #include <QLineEdit>
 #include <QPushButton>
-#include <QVBoxLayout>
+#include <QMap>
-#include <QHBoxLayout>
+#include <QList>
-#include "student.h"
 
-QT_BEGIN_NAMESPACE
+struct Student
-namespace Ui
 {
-    class MainWindow;
+    QString name;
-}
+    QString gender;
-QT_END_NAMESPACE
+    int age;
+    QString id;
+    QString phone;
+};
 
 class MainWindow : public QMainWindow
 {
@@ -25,23 +25,51 @@ class MainWindow : public QMainWindow
 public:
     MainWindow(QWidget *parent = nullptr);
     ~MainWindow();
+
 private slots:
-    void on_addButton_clicked();
+    // 班级管理
-    void on_deleteButton_clicked();
+    void showTreeMenu(const QPoint &pos);
+    void addClass();
+    void deleteClass();
+    void renameClass();
+    void onClassClicked(QTreeWidgetItem *item);
+    // 学生管理
+    void addStudent();
+    void deleteStudent();
+//    void updateStudent();
+//    void searchStudent();
+    void tableItemClicked(int row, int column);
+    // 文件操作 与 分页
+//    void importData();
+//    void saveData();
+//    void refreshAll();
+//    void prevPage();
+//    void nextPage();
 
 private:
-    QVector<Student> students; // 学生信息列表
+    void setupUI();
-    QStandardItemModel *model; // 数据模型
+    void refreshTable();
+//    void saveClassToFile(const QString &className);
+    QString currentClass() const;
 
-    // 纯代码声明控件
+private:
-    QTableView *tableView;
+    // 顶部菜单栏
-    QLineEdit *idEdit;
+    QMenu *fileMenu;
-    QLineEdit *nameEdit;
+    QMenu *editMenu;
-    QLineEdit *scoreEdit;
+    // 左侧班级树控件
+    QTreeWidget *tree;
+    // 中间学生表格控件
+    QTableWidget *table;
 
-    QPushButton *addButton;
+    QLineEdit *nameEdit;
-    QPushButton *deleteButton;
+    QLineEdit *genderEdit;
+    QLineEdit *ageEdit;
+    QLineEdit *idEdit;
+    QLineEdit *phoneEdit;
 
-    void refreshTable(); // 刷新表格显示
+    QPushButton *addBtn;
+    QPushButton *delBtn;
+    // 班级数据存储
+    QMap<QString, QList<Student>> classData;
 };
 #endif // MAINWINDOW_H

student.h

@@ -1,14 +0,0 @@
-#ifndef STUDENT_H
-#define STUDENT_H
-
-#include <QString>
-
-class Student
-{
-public:
-    QString id;   // 学号
-    QString name; // 姓名
-    double score; // 成绩
-};
-
-#endif // STUDENT_H