Theqiqi_blog

QSlidermain.cpp12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849#include <QApplication>#include <QWidget>#include <QSlider>#include <QLCDNumber>#include <QVBoxLayout>#include <qlabel.h>void setupSliderDemo(QWidget *parent) { QVBoxLayout *layout = new QVBoxLayout(parent); // --- 1. 创建滑动条 --- // Qt::Horizontal 是横向，Qt::Vertical 是纵向 QSlider *slider = new QSlider(Qt::Horizontal, parent); slider->setRang ...

QComboBoxmain.cpp123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263#include <QComboBox>#include <QVBoxLayout>#include <QLabel>#include <QDebug>#include <qapplication.h>void setupComboBoxDemo(QWidget *parent) { QVBoxLayout *layout = new QVBoxLayout(parent); // --- 1. 基础下拉框 (只读模式) --- QLabel *label1 = new QLabel("选择你的职业：", parent); QComboBox *jobCombo = new QComboBox(parent); ...

QDoubleSpinBoxmain.cpp1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859#include <QDoubleSpinBox>#include <QVBoxLayout>#include <QLabel>#include <QDebug>#include <qapplication.h>void setupDoubleSpinBoxDemo(QWidget *parent) { QVBoxLayout *layout = new QVBoxLayout(parent); // --- 1. 基础价格选择框 (货币模式) --- QLabel *label1 = new QLabel("商品单价设置 (0.00 - 999.99)：", parent); QDoubleSpinBox *pri ...

QSpinBoxmain.cpp1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556#include <QSpinBox>#include <QVBoxLayout>#include <QLabel>#include <QDebug>#include <qapplication.h>void setupSpinBoxDemo(QWidget *parent) { QVBoxLayout *layout = new QVBoxLayout(parent); // --- 1. 基础年龄选择框 --- QLabel *label1 = new QLabel("请选择年龄 (0-150)：", parent); QSpinBox *ageBox = new QSpinBox(parent); // 设置属性 ageB ...

QPlainTextEditmain.cpp1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859#include <QPlainTextEdit>#include <QVBoxLayout>#include <QPushButton>#include <QLabel>#include <QTime>#include <qapplication.h>void setupPlainTextEditDemo(QWidget *parent) { QVBoxLayout *layout = new QVBoxLayout(parent); // --- 1. 创建纯文本编辑器 --- QPlainTextEdit *plainEdit = new QPlainTextEdit(parent); plainEdit->se ...

QTextEditmain.cpp123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960#include <QTextEdit>#include <QVBoxLayout>#include <QPushButton>#include <QLabel>#include <qapplication.h>void setupTextEditDemo(QWidget *parent) { QVBoxLayout *layout = new QVBoxLayout(parent); // --- 1. 创建多行文本框 --- QTextEdit *textEdit = new QTextEdit(parent); textEdit->setPlaceholderText("请输入详细描述内容（支持 HTML 标签）...& ...

qt LineEditmain.cpp12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364#include <QApplication>#include <QLineEdit>#include <QLabel>#include <QVBoxLayout>#include <QDebug>void setupLineEditDemo(QWidget *parent) { // 创建一个垂直布局，让控件排好队 QVBoxLayout *layout = new QVBoxLayout(parent); // --- 1. 基础输入框 --- QLabel *label1 = new QLabel("普通输入框：", parent); QLineEdit *editNormal = new ...

qt Labelmain.cpp123456789101112131415161718192021222324252627282930313233343536#include <QApplication>#include <QWidget>#include <QLabel>#include <QVBoxLayout>void testLabelVariety(QWidget *parent) { // 使用布局，让它们自动排列 QVBoxLayout *layout = new QVBoxLayout(parent); QLabel *txtLabel = new QLabel("这是一段普通的文字"); // 这里可以不传parent，因为下面的addWidget会自动绑定 QLabel *styleLabel = new QLabel(); styleLabel->setText("<b>加粗文字</b> <i style=&#x ...

qt控件的属性设置QPushButton的属性设置main.cpp1234567891011121314151617181920212223242526272829303132333435363738#include <QApplication>#include <QPushButton>#include <QWidget>#include <QDebug>void configureAdvancedButton(QPushButton *btn) { // 1. 设置内容 btn->setText("开启静音"); btn->setToolTip("点击切换系统静音状态"); // 2. 核心逻辑配置：变成一个开关 btn->setCheckable(true); btn->setChecked(false); // 初始为关闭状态 // 3. 视觉与交互增强 //btn->setCursor(Qt::Poin ...

qt弹窗独立弹窗main.cpp1234567891011#include <QApplication>#include <QMessageBox>int main(int argc, char *argv[]) { QApplication a(argc, argv); // parent 传 nullptr，弹窗将作为一个独立的顶级窗口出现在屏幕中央 QMessageBox::information(nullptr, "系统提示", "检测到环境异常，程序将退出。"); return 0; // 弹窗关闭后直接结束程序} 窗口弹窗main.cpp12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485#inc ...