代码的基本布局
在这里,每次用户单击PushButton 'Press me'
时,都会生成一个新的复选框。
from PyQt5 import QtWidgets, QtGui, QtCore
count = 1
class Window(QtWidgets.QWidget):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
self.vlayout = QtWidgets.QVBoxLayout()
self.pushButton1 = QtWidgets.QPushButton("Press me", self)
self.pushButton1.clicked.connect(self.addCheckbox(count))
self.pushButton2 = QtWidgets.QPushButton("OK", self)
self.vlayout.addWidget(self.pushButton1)
self.vlayout.addWidget(self.pushButton2)
self.setLayout(self.vlayout)
def addCheckbox(self,count):
global count
self.vlayout.addWidget(str(count),QtWidgets.QCheckBox())
count = count +1
application = QtWidgets.QApplication(sys.argv)
window = Window()
window.setWindowTitle('Hello')
window.resize(250, 180)
window.show()
sys.exit(application.exec_())
我想做什么?
现在您将拥有独特的复选框,每个复选框都有不同的编号,我想添加更多功能。
每次用户选择特定复选框时,我想知道用户在单击 PushButton OK
后单击了哪个复选框。
例如:我单击复选框 1
-> 确定
-> 在屏幕上打印 1
我该怎么做?
PS:我们需要考虑用户从未点击Press me
的可能性,因此不会生成复选框并直接点击OK
最佳答案
只需使用一个列表来存储QCheckBox,并通过迭代进行验证。
from PyQt5 import QtWidgets, QtGui, QtCore
class Window(QtWidgets.QWidget):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
self.vlayout = QtWidgets.QVBoxLayout(self)
self.pushButton1 = QtWidgets.QPushButton("Press me")
self.pushButton1.clicked.connect(self.addCheckbox)
self.pushButton2 = QtWidgets.QPushButton("OK")
self.pushButton2.clicked.connect(self.onClicked)
self.vlayout.addWidget(self.pushButton1)
self.vlayout.addWidget(self.pushButton2)
self.checkboxes = []
def addCheckbox(self):
checkbox = QtWidgets.QCheckBox()
self.checkboxes.append(checkbox)
self.vlayout.addWidget(checkbox)
def onClicked(self):
for i, checkbox in enumerate(self.checkboxes):
if checkbox.isChecked():
print("print {} on the screen".format(i))
if __name__ == '__main__':
import sys
application = QtWidgets.QApplication(sys.argv)
window = Window()
window.setWindowTitle('Hello')
window.resize(250, 180)
window.show()
sys.exit(application.exec_())
关于python - PyQt5:检查动态创建的复选框是否存在并引用它们,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51405824/