我一直在尝试根据PyQt5中变量的值创建X个按钮，但是我的方法不起作用。
我创建了一个带有循环的函数，其中X值为按钮的数量。
此代码（功能已注释）有效：
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
def createButtons(x):
number_of_buttons = x
table_set = 1
distance_from_left = 5
while table_set <= number_of_buttons:
print(distance_from_left) #Check if the loop is runnig
"self.pushButton_{} = QtWidgets.QPushButton(self.groupBox)".format(table_set)
"self.pushButton_{}.setGeometry(QtCore.QRect({}, 15, 40, 35))".format(table_set, distance_from_left)
"self.pushButton_{}.setText(\"{}\")".format(table_set, str(table_set).zfill(2))
"self.pushButton_{}.setObjectName(\"pushButton_{}\")".format(table_set, table_set)
table_set += 1
distance_from_left += 45
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1366, 768)
MainWindow.setAutoFillBackground(False)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.groupBox = QtWidgets.QGroupBox(self.centralwidget)
self.groupBox.setGeometry(QtCore.QRect(0, 80, 531, 56))
self.groupBox.setAutoFillBackground(False)
self.groupBox.setObjectName("groupBox")
#createButtons(3)
self.pushButton_1 = QtWidgets.QPushButton(self.groupBox)
self.pushButton_1.setGeometry(QtCore.QRect(5, 15, 40, 35))
self.pushButton_1.setText("01")
self.pushButton_1.setObjectName("pushButton_1")
self.pushButton_2 = QtWidgets.QPushButton(self.groupBox)
self.pushButton_2.setGeometry(QtCore.QRect(50, 15, 40, 35))
self.pushButton_2.setText("02")
self.pushButton_2.setObjectName("pushButton_2")
self.pushButton_3 = QtWidgets.QPushButton(self.groupBox)
self.pushButton_3.setGeometry(QtCore.QRect(95, 15, 40, 35))
self.pushButton_3.setText("03")
self.pushButton_3.setObjectName("pushButton_3")
MainWindow.setCentralWidget(self.centralwidget)
self.centralwidget.show()
QtCore.QMetaObject.connectSlotsByName(MainWindow)
这（功能正在运行，直接命令已注释）不起作用。在我看来，它们看起来一样。
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
def createButtons(x):
number_of_buttons = x
table_set = 1
distance_from_left = 5
while table_set <= number_of_buttons:
print(distance_from_left) #Check if the loop is runnig
"self.pushButton_{} = QtWidgets.QPushButton(self.groupBox)".format(table_set)
"self.pushButton_{}.setGeometry(QtCore.QRect({}, 15, 40, 35))".format(table_set, distance_from_left)
"self.pushButton_{}.setText(\"{}\")".format(table_set, str(table_set).zfill(2))
"self.pushButton_{}.setObjectName(\"pushButton_{}\")".format(table_set, table_set)
table_set += 1
distance_from_left += 45
MainWindow.setObjectName("MainWindow")
MainWindow.resize(1366, 768)
MainWindow.setAutoFillBackground(False)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.groupBox = QtWidgets.QGroupBox(self.centralwidget)
self.groupBox.setGeometry(QtCore.QRect(0, 80, 531, 56))
self.groupBox.setAutoFillBackground(False)
self.groupBox.setObjectName("groupBox")
createButtons(3)
"""
self.pushButton_1 = QtWidgets.QPushButton(self.groupBox)
self.pushButton_1.setGeometry(QtCore.QRect(5, 15, 40, 35))
self.pushButton_1.setText("01")
self.pushButton_1.setObjectName("pushButton_1")
self.pushButton_2 = QtWidgets.QPushButton(self.groupBox)
self.pushButton_2.setGeometry(QtCore.QRect(50, 15, 40, 35))
self.pushButton_2.setText("02")
self.pushButton_2.setObjectName("pushButton_2")
self.pushButton_3 = QtWidgets.QPushButton(self.groupBox)
self.pushButton_3.setGeometry(QtCore.QRect(95, 15, 40, 35))
self.pushButton_3.setText("03")
self.pushButton_3.setObjectName("pushButton_3")
"""
MainWindow.setCentralWidget(self.centralwidget)
self.centralwidget.show()
QtCore.QMetaObject.connectSlotsByName(MainWindow)
没有按钮显示。有人可以告诉我我在做什么错吗？
参考方案
尝试一下：
import sys
from PyQt5.QtWidgets import (QMainWindow, QWidget, QVBoxLayout,
QApplication, QPushButton)
class MainWindow(QMainWindow):
def __init__(self, x): # x <-- 3
super().__init__()
self.centralwidget = QWidget()
self.setCentralWidget(self.centralwidget)
self.lay = QVBoxLayout(self.centralwidget)
for i in range(x): # <---
self.btn = QPushButton('Button {}'.format(i +1), self)
text = self.btn.text()
self.btn.clicked.connect(lambda ch, text=text : print("\nclicked--> {}".format(text)))
self.lay.addWidget(self.btn)
self.numButton = 4
pybutton = QPushButton('Create a button', self)
pybutton.clicked.connect(self.clickMethod)
self.lay.addWidget(pybutton)
self.lay.addStretch(1)
def clickMethod(self):
newBtn = QPushButton('New Button{}'.format(self.numButton), self)
self.numButton += 1
newBtn.clicked.connect(lambda : print("\nclicked===>> {}".format(newBtn.text())))
self.lay.addWidget(newBtn)
if __name__ == "__main__":
app = QApplication(sys.argv)
mainWin = MainWindow(3) # 3 --> x
mainWin.show()
sys.exit( app.exec_() )
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