* 在编程开发中，一个程序不可避免的需要多窗口操作来实现具体的功能。
实现此功能的基本步骤（以三个窗口为例，使用主窗口调用其它两个窗口）
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# 主窗口
from pyqt5 import qtcore, qtgui, qtwidgets
class ui_mainwindow(object):
def setupui(self, mainwindow):
mainwindow.setobjectname("mainwindow")
mainwindow.resize(800, 600)
self.centralwidget = qtwidgets.qwidget(mainwindow)
self.centralwidget.setobjectname("centralwidget")
self.pushbutton = qtwidgets.qpushbutton(self.centralwidget)
self.pushbutton.setgeometry(qtcore.qrect(70, 180, 75, 23))
self.pushbutton.setobjectname("pushbutton")
self.pushbutton_2 = qtwidgets.qpushbutton(self.centralwidget)
self.pushbutton_2.setgeometry(qtcore.qrect(250, 180, 75, 23))
self.pushbutton_2.setobjectname("pushbutton_2")
mainwindow.setcentralwidget(self.centralwidget)
self.menubar = qtwidgets.qmenubar(mainwindow)
self.menubar.setgeometry(qtcore.qrect(0, 0, 800, 23))
self.menubar.setobjectname("menubar")
mainwindow.setmenubar(self.menubar)
self.statusbar = qtwidgets.qstatusbar(mainwindow)
self.statusbar.setobjectname("statusbar")
mainwindow.setstatusbar(self.statusbar)
self.retranslateui(mainwindow)
qtcore.qmetaobject.connectslotsbyname(mainwindow)
def retranslateui(self, mainwindow):
_translate = qtcore.qcoreapplication.translate
mainwindow.setwindowtitle(_translate("mainwindow", "mainwindow"))
self.pushbutton.settext(_translate("mainwindow", "打开窗口1"))
self.pushbutton_2.settext(_translate("mainwindow", "打开窗口2 "))
# 窗口1
class ui_dialog(object):
def setupui(self, dialog):
dialog.setobjectname("dialog")
dialog.resize(400, 300)
self.buttonbox = qtwidgets.qdialogbuttonbox(dialog)
self.buttonbox.setgeometry(qtcore.qrect(30, 240, 341, 32))
self.buttonbox.setorientation(qtcore.qt.horizontal)
self.buttonbox.setstandardbuttons(qtwidgets.qdialogbuttonbox.cancel|qtwidgets.qdialogbuttonbox.ok)
self.buttonbox.setobjectname("buttonbox")
self.label = qtwidgets.qlabel(dialog)
self.label.setgeometry(qtcore.qrect(140, 100, 54, 12))
self.label.setobjectname("label")
self.retranslateui(dialog)
self.buttonbox.accepted.connect(dialog.accept)
self.buttonbox.rejected.connect(dialog.reject)
qtcore.qmetaobject.connectslotsbyname(dialog)
def retranslateui(self, dialog):
_translate = qtcore.qcoreapplication.translate
dialog.setwindowtitle(_translate("dialog", "dialog"))
self.label.settext(_translate("dialog", "这是窗口1"))
# 窗口2
class ui_form(object):
def setupui(self, form):
form.setobjectname("form")
form.resize(400, 300)
self.label = qtwidgets.qlabel(form)
self.label.setgeometry(qtcore.qrect(140, 140, 54, 12))
self.label.setobjectname("label")
self.retranslateui(form)
qtcore.qmetaobject.connectslotsbyname(form)
def retranslateui(self, form):
_translate = qtcore.qcoreapplication.translate
form.setwindowtitle(_translate("form", "form"))
self.label.settext(_translate("form", "这是窗口2"))
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主程序入口：
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# 主程序
class mainwindow(qmainwindow, untitled.ui_mainwindow):
def __init__(self):
super(mainwindow, self).__init__()
self.setupui(self)
self.window2 = ui_dialog()
self.window2.setupui()
self.window3 = ui_form()
self.window3.setupui()
self.pushbutton.clicked.connect(self.window2.show)# 绑定窗口2
self.pushbutton_2.clicked.connect(self.window3.show) # 绑定窗口3
if __name__ == '__main__':
app = qapplication(sys.argv)
mainwindow = mainwindow()
mainwindow.show()
sys.exit(app.exec_())
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以上实现主窗口通过按钮弹出窗口1和窗口2
下面实现通过窗口按钮打开文件资源管理器，实现获取文件相关信息的功能：
1. 在主窗口中添加一个按钮：
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class ui_mainwindow(object):
def setupui(self, mainwindow):
......
self.pushbutton_3 = qtwidgets.qpushbutton(self.centralwidget)
self.pushbutton_3.setgeometry(qtcore.qrect(420, 180, 75, 23))
self.pushbutton_3.setobjectname("pushbutton_3")
def retranslateui(self, mainwindow):
......
self.pushbutton_3.settext(_translate("mainwindow", "打开目录"))
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2.主程序中添加：
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# 主程序
class mainwindow(qmainwindow, untitled.ui_mainwindow):
def __init__(self):
super(mainwindow, self).__init__()
self.setupui(self)
self.window2 = ui_dialog()
self.window2.setupui()
self.window3 = ui_form()
self.window3.setupui()
self.pushbutton.clicked.connect(self.window2.show)# 绑定窗口2
self.pushbutton_2.clicked.connect(self.window3.show) # 绑定窗口3
self.pushbutton_3.clicked.connect(self.gefilename) # 新增加的
# 新增加的
def gefilename(self):
filename = qfiledialog.getopenfilename()
return filename
if __name__ == '__main__':
app = qapplication(sys.argv)
mainwindow = mainwindow()
mainwindow.show()
sys.exit(app.exec_())
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即可完成上述功能。
以上这篇pyqt 多窗口之间的相互调用方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/huolan__34/article/details/81541308