python pyqt5 按钮 QPushButton

QAbstractButton/QPushButton,QToolButton,QRadioButton,QCheckBox
按钮状态：
isDown() isChecked() isEnable() isCheckAble() setAutoRepeat()

image.png

click

image.png

---

QPushButton

setEnabled() setText() text()

image.png

设置快捷键

image.png

-- coding: utf-8 --

'''
【简介】
PyQt5中QButton例子

'''

import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *

class Form(QDialog):
def init(self, parent=None):
super(Form, self).init(parent)
layout = QVBoxLayout()

    self.btn1 = QPushButton("Button1")
    self.btn1.setCheckable(True)
    self.btn1.toggle()
    self.btn1.clicked.connect(lambda: self.whichbtn(self.btn1))
    self.btn1.clicked.connect(self.btnstate)
    layout.addWidget(self.btn1)

    self.btn2 = QPushButton('image')
    self.btn2.setIcon(QIcon(QPixmap("./images/python.png")))
    self.btn2.clicked.connect(lambda: self.whichbtn(self.btn2))
    layout.addWidget(self.btn2)
    self.setLayout(layout)

    self.btn3 = QPushButton("Disabled")
    self.btn3.setEnabled(False)
    layout.addWidget(self.btn3)

    self.btn4 = QPushButton("&Download")
    self.btn4.setDefault(True)
    self.btn4.clicked.connect(lambda: self.whichbtn(self.btn4))
    layout.addWidget(self.btn4)
    self.setWindowTitle("Button demo")

def btnstate(self):
    if self.btn1.isChecked():
        print("button pressed")
    else:
        print("button released")

def whichbtn(self, btn):
    print("clicked button is " + btn.text())

if name == 'main':
app = QApplication(sys.argv)
btnDemo = Form()
btnDemo.show()
sys.exit(app.exec_())