add 29

Author: xugaoxiang

README.md

@@ -48,4 +48,6 @@
 
 * p27_显示matplotlib图表 [源码下载](p27_显示matplotlib图表) [博文地址](https://xugaoxiang.com/2022/05/03/pyqt5-27-matplotlib/)
 
-* p28_鼠标事件 [源码下载](p28_鼠标事件) [博文地址](https://xugaoxiang.com/2022/05/15/pyqt5-28-mouse-event/)
+* p28_鼠标事件 [源码下载](p28_鼠标事件) [博文地址](https://xugaoxiang.com/2022/05/15/pyqt5-28-mouse-event/)
+
+* p29_键盘事件 [源码下载](p29_键盘事件) [博文地址](https://xugaoxiang.com/2022/05/31/pyqt5-29-keyboard-event/)

p29_键盘事件/main.py

@@ -0,0 +1,50 @@
+import sys
+
+from PyQt5.QtWidgets import QMainWindow, QApplication, QMessageBox, QShortcut
+from PyQt5.QtCore import Qt
+from PyQt5.QtGui import QKeySequence
+
+from ui import Ui_MainWindow
+
+
+class MainWindow(QMainWindow, Ui_MainWindow):
+
+    def __init__(self, parent=None):
+        super(MainWindow, self).__init__(parent)
+        self.setupUi(self)
+
+        self.pushButton.clicked.connect(self.onClick)
+        # 给按钮操作设置一个快捷键
+        self.pushButton.setShortcut(QKeySequence(Qt.Key_A))
+
+        # 或者这样
+        # self.shortcut_button = QShortcut(QKeySequence('Ctrl+S'), self)
+        # self.shortcut_button.activated.connect(self.onClick)
+
+    def onClick(self):
+        print('onClick.')
+
+    def keyPressEvent(self, event):
+        # 判断按下的是什么键
+        if event.key() == Qt.Key_D:
+            print('keyPressEvent, Key_D')
+
+            # ctrl 修饰键
+            if event.modifiers() & Qt.ControlModifier:
+                print('Ctrl+D')
+            # alt 修饰键
+            elif event.modifiers() & Qt.AltModifier:
+                print('Alt+D')
+            # shift 修饰键
+            elif event.modifiers() & Qt.ShiftModifier:
+                print('Shift+D')
+
+    def keyReleaseEvent(self, event):
+        print('keyReleaseEvent')
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    windows = MainWindow()
+    windows.show()
+    sys.exit(app.exec_())

p29_键盘事件/project.ui

@@ -0,0 +1,50 @@
+<?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="QPushButton" name="pushButton">
+    <property name="geometry">
+     <rect>
+      <x>280</x>
+      <y>180</y>
+      <width>201</width>
+      <height>81</height>
+     </rect>
+    </property>
+    <property name="font">
+     <font>
+      <pointsize>20</pointsize>
+     </font>
+    </property>
+    <property name="text">
+     <string>按 钮</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>26</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

p29_键盘事件/ui.py

@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+
+# Form implementation generated from reading ui file '.\project.ui'
+#
+# Created by: PyQt5 UI code generator 5.9.2
+#
+# WARNING! All changes made in this file will be lost!
+
+from PyQt5 import QtCore, QtGui, QtWidgets
+
+class Ui_MainWindow(object):
+    def setupUi(self, MainWindow):
+        MainWindow.setObjectName("MainWindow")
+        MainWindow.resize(800, 600)
+        self.centralwidget = QtWidgets.QWidget(MainWindow)
+        self.centralwidget.setObjectName("centralwidget")
+        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
+        self.pushButton.setGeometry(QtCore.QRect(280, 180, 201, 81))
+        font = QtGui.QFont()
+        font.setPointSize(20)
+        self.pushButton.setFont(font)
+        self.pushButton.setObjectName("pushButton")
+        MainWindow.setCentralWidget(self.centralwidget)
+        self.menubar = QtWidgets.QMenuBar(MainWindow)
+        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))
+        self.menubar.setObjectName("menubar")
+        MainWindow.setMenuBar(self.menubar)
+        self.statusbar = QtWidgets.QStatusBar(MainWindow)
+        self.statusbar.setObjectName("statusbar")
+        MainWindow.setStatusBar(self.statusbar)
+
+        self.retranslateUi(MainWindow)
+        QtCore.QMetaObject.connectSlotsByName(MainWindow)
+
+    def retranslateUi(self, MainWindow):
+        _translate = QtCore.QCoreApplication.translate
+        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
+        self.pushButton.setText(_translate("MainWindow", "按 钮"))
+