我可以让我的程序在点击按钮时更改状态栏文本。我一直收到更改按钮上的Pyqt状态栏文本点击
"TypeError: argument 1 has unexpected type 'NoneType'"
错误'self.closeButton.clicked.connect(self.process('text'))''。 我不知道该怎么办了
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QLineEdit,
QPushButton
from PyQt5.QtGui import QIcon
class App(QMainWindow):
def process(self):
self.statusBar.showMessage('online')
def __init__(self):
super().__init__()
self.title = 'Red Queen v0.4'
self.initUI()
def initUI(self):
self.setWindowTitle(self.title)
self.statusBar().showMessage('Offline')
self.showMaximized()
self.setStyleSheet("background-color: #FFFFFF;")
self.textbox = QLineEdit(self)
self.textbox.move(500, 300)
self.textbox.resize(350, 20)
self.textbox.setStyleSheet("border: 3px solid red;")
self.setWindowIcon(QIcon('Samaritan.png'))
text = QLineEdit.text(self.textbox)
self.closeButton = QPushButton('process', self)
self.closeButton.clicked.connect(self.process('text'))
self.closeButton.show()
self.show()
self.textbox.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
您必须将信号连接到插槽,self.process('文本')不是插槽/可调用。你的例子也不是最小的。 – Trilarion