.gitignore

@@ -1 +0,0 @@
-*.pro.user

StudentManager.pro

@@ -23,6 +23,8 @@ HEADERS += \
     mainwindow.h \
     student.h
 
+FORMS += \
+    mainwindow.ui
 
 # Default rules for deployment.
 qnx: target.path = /tmp/$${TARGET}/bin

mainwindow.cpp

@@ -1,105 +1,46 @@
 #include "mainwindow.h"
+#include "ui_mainwindow.h"
 #include <QMessageBox>
-#include <QDebug>
 
 MainWindow::MainWindow(QWidget *parent)
-    : QMainWindow(parent)
+    : QMainWindow(parent), ui(new Ui::MainWindow)
 {
-    QWidget *central = new QWidget(this);
-    setCentralWidget(central);
-
-    // 表格
-    tableView = new QTableView(this);
+    ui->setupUi(this);
     model = new QStandardItemModel(this);
     model->setHorizontalHeaderLabels({"学号", "姓名", "成绩"});
-    tableView->setModel(model);
-
-    // 输入框
-    idEdit = new QLineEdit();
-    idEdit->setPlaceholderText("学号"); // 占位符 && 水印文字
-    nameEdit = new QLineEdit();
-    nameEdit->setPlaceholderText("姓名");
-    scoreEdit = new QLineEdit();
-    scoreEdit->setPlaceholderText("成绩");
-
-    // 按钮
-    addButton = new QPushButton("添加");
-    deleteButton = new QPushButton("删除");
-
-    // 布局
-    // Edit水平布局
-    QHBoxLayout *formLayout_Edit = new QHBoxLayout();
-    formLayout_Edit->addWidget(idEdit);
-    formLayout_Edit->addWidget(nameEdit);
-    formLayout_Edit->addWidget(scoreEdit); // 使各个Edit之间水平分布
-
-    // Button水平布局
-    QHBoxLayout *formLayout_button = new QHBoxLayout();
-    formLayout_button->addWidget(addButton);
-    formLayout_button->addWidget(deleteButton);
-
-    // 垂直布局
-    QVBoxLayout *mainLayout = new QVBoxLayout();
-    mainLayout->addWidget(tableView);         // index 0：垂直布局中第0个元素（表格）
-    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）
-
-    // 控制大小
-    mainLayout->setStretch(0, 1);                   // 表格撑满
-    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
-
-    central->setLayout(mainLayout);
-
-    tableView->setSizePolicy(
-        QSizePolicy::Expanding,
-        QSizePolicy::Expanding);
-
-    // 信号槽
-    connect(addButton, &QPushButton::clicked, this, &MainWindow::on_addButton_clicked);
-    connect(deleteButton, &QPushButton::clicked, this, &MainWindow::on_deleteButton_clicked);
-
-    // 确认窗口大小
-    resize(900, 600);
-    setMinimumSize(800, 500);
+    ui->tableView->setModel(model);
 }
 
-// 这个析构还必须得有
 MainWindow::~MainWindow()
 {
+    delete ui;
 }
 
 void MainWindow::on_addButton_clicked()
 {
     // 添加学生信息的逻辑
     Student stu;
-    stu.id = idEdit->text();
-    stu.name = nameEdit->text();
-    stu.score = scoreEdit->text().toDouble();
-    //    qDebug() << "id : " << stu.id
-    //             << "name : " << stu.name
-    //             << "score : " << stu.score;
-
-    //     判空F
+    stu.id = ui -> idEdit->text();
+    stu.name = ui -> nameEdit->text();
+    stu.score = ui -> scoreEdit->text().toDouble();
+    // 判空
     if (stu.id.isEmpty() || stu.name.isEmpty())
     {
         QMessageBox::warning(this, "错误", "学号和姓名不能为空！");
         return;
     }
     students.push_back(stu);
-
     // 刷新表格
     refreshTable();
-
     // 刷新输入框内容
-    idEdit->clear();
-    nameEdit->clear();
-    scoreEdit->clear();
+    ui->idEdit->clear();
+    ui->nameEdit->clear();
+    ui->scoreEdit->clear();
 }
 
 void MainWindow::on_deleteButton_clicked()
 {
-    int row = tableView->currentIndex().row();
+    int row = ui->tableView->currentIndex().row();
     if (row < 0)
         return;
 

mainwindow.h

@@ -4,11 +4,6 @@
 #include <QMainWindow>
 #include <QVector>
 #include <QStandardItemModel>
-#include <QTableView>
-#include <QLineEdit>
-#include <QPushButton>
-#include <QVBoxLayout>
-#include <QHBoxLayout>
 #include "student.h"
 
 QT_BEGIN_NAMESPACE
@@ -30,18 +25,10 @@ private slots:
     void on_deleteButton_clicked();
 
 private:
+    Ui::MainWindow *ui;
     QVector<Student> students; // 学生信息列表
     QStandardItemModel *model; // 数据模型
 
-    // 纯代码声明控件
-    QTableView *tableView;
-    QLineEdit *idEdit;
-    QLineEdit *nameEdit;
-    QLineEdit *scoreEdit;
-
-    QPushButton *addButton;
-    QPushButton *deleteButton;
-
     void refreshTable(); // 刷新表格显示
 };
 #endif // MAINWINDOW_H

mainwindow.ui

@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <widget class="QTableView" name="tableView">
+    <property name="geometry">
+     <rect>
+      <x>200</x>
+      <y>0</y>
+      <width>361</width>
+      <height>321</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="idEdit">
+    <property name="geometry">
+     <rect>
+      <x>170</x>
+      <y>350</y>
+      <width>113</width>
+      <height>27</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="nameEdit">
+    <property name="geometry">
+     <rect>
+      <x>310</x>
+      <y>350</y>
+      <width>113</width>
+      <height>27</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QLineEdit" name="scoreEdit">
+    <property name="geometry">
+     <rect>
+      <x>470</x>
+      <y>350</y>
+      <width>113</width>
+      <height>27</height>
+     </rect>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="addButton">
+    <property name="geometry">
+     <rect>
+      <x>220</x>
+      <y>430</y>
+      <width>98</width>
+      <height>26</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>AddStudent</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="deleteButton">
+    <property name="geometry">
+     <rect>
+      <x>450</x>
+      <y>430</y>
+      <width>98</width>
+      <height>26</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>DelStudent</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>21</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

student.h

@@ -6,9 +6,9 @@
 class Student
 {
 public:
-    QString id;   // 学号
-    QString name; // 姓名
-    double score; // 成绩
+    QString id;     // 学号
+    QString name;   // 姓名
+    double score;   // 成绩
 };
 
 #endif // STUDENT_H