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创建和使用状态栏.py
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创建和使用状态栏.py
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from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
import sys
class statusBarDemo(QMainWindow):
def __init__(self):
super().__init__()
self.initUi()
def initUi(self):
self.setWindowTitle('创建和使用状态栏')
self.resize(400,500)
#获取一个菜单栏
tb1=self.menuBar()
#向菜单栏添加一个母菜单项
file=tb1.addMenu('文件')
#向菜单栏添加一个子菜单项
file.addAction("show")
#绑定信号与槽
file.triggered.connect(self.file_triggered)
#新建一个状态栏
self.statusBar=QStatusBar()
#设置状态栏
self.setStatusBar(self.statusBar)
#建立槽,返回来的q,看是哪一个被点击了
def file_triggered(self,q):
if q.text()=="show":
self.statusBar.showMessage(q.text()+"菜单被点击了",5000)
if __name__ == '__main__':
app = QApplication(sys.argv)
main = statusBarDemo()
main.show()
sys.exit(app.exec_())