Pyqt 触发一个事件，打开外部链接，我找到了这个方法，供大家参考

1. QDesktopServices 的openUrl 方法

 

1 QtGui.QDesktopServices.openUrl(QtCore.QUrl('http://www.hao123.com'))

 

2.Python 自带的webbrowser 浏览器控制模块

webbrowser提供了三种方法

1 import webbrowser 2 webbrowser.open(url, new=0, autoraise=True)3 webbrowser.open_new(url)4 webbrowser.open_new_tab(url)

 

3.部分控件的Link属性链接

Pyqt有几个控件带有 setOpenExternalLinks ，  如 QTextLabel  、  QTextBrowser  等

当 setOpenExternalLinks 值为TURE 表示可通过html 添加 A 标签打开外部链接, 如设置：

self.label.setOpenExternalLinks(True)

1 self.label.setText(_translate("MainWindow", "
百度首页
", None))

 

 

示例代码与效果：

1 # -*- coding: utf-8 -*- 2  3 # Form implementation generated from reading ui file 'URL2.ui' 4 # 5 # Created: Fri Feb 06 10:03:54 2015 6 #      by: PyQt4 UI code generator 4.10.3 7 # 8 # WARNING! All changes made in this file will be lost! 9 10 from PyQt4 import QtCore, QtGui11 12 try:13     _fromUtf8 = QtCore.QString.fromUtf814 except AttributeError:15     def _fromUtf8(s):16         return s17 18 try:19     _encoding = QtGui.QApplication.UnicodeUTF820     def _translate(context, text, disambig):21         return QtGui.QApplication.translate(context, text, disambig, _encoding)22 except AttributeError:23     def _translate(context, text, disambig):24         return QtGui.QApplication.translate(context, text, disambig)25 26 class Ui_MainWindow(object):27     def setupUi(self, MainWindow):28         MainWindow.setObjectName(_fromUtf8("MainWindow"))29         MainWindow.resize(270, 313)30         self.centralwidget = QtGui.QWidget(MainWindow)31         self.centralwidget.setObjectName(_fromUtf8("centralwidget"))32         self.label = QtGui.QLabel(self.centralwidget)33         self.label.setGeometry(QtCore.QRect(80, 140, 101, 41))34         self.label.setOpenExternalLinks(True)35         self.label.setObjectName(_fromUtf8("label"))36         self.openUrl = QtGui.QPushButton(self.centralwidget)37         self.openUrl.setGeometry(QtCore.QRect(70, 40, 101, 21))38         self.openUrl.setObjectName(_fromUtf8("openUrl"))39         self.webbrowser = QtGui.QPushButton(self.centralwidget)40         self.webbrowser.setGeometry(QtCore.QRect(70, 90, 101, 21))41         self.webbrowser.setObjectName(_fromUtf8("webbrowser"))42         MainWindow.setCentralWidget(self.centralwidget)43         self.menubar = QtGui.QMenuBar(MainWindow)44         self.menubar.setGeometry(QtCore.QRect(0, 0, 270, 23))45         self.menubar.setObjectName(_fromUtf8("menubar"))46         MainWindow.setMenuBar(self.menubar)47         self.statusbar = QtGui.QStatusBar(MainWindow)48         self.statusbar.setObjectName(_fromUtf8("statusbar"))49         MainWindow.setStatusBar(self.statusbar)50 51         self.retranslateUi(MainWindow)52         QtCore.QMetaObject.connectSlotsByName(MainWindow)53 54     def retranslateUi(self, MainWindow):55         MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None))56         self.label.setText(_translate("MainWindow", "lalel属性效果", None))57         self.openUrl.setText(_translate("MainWindow", "openUrl效果", None))58         self.webbrowser.setText(_translate("MainWindow", "webbrowser效果", None))59 60 61 62 63 64 class OpenUrl(QtGui.QMainWindow):65     def __init__(self):66         super(OpenUrl, self).__init__()67         self.UI=Ui_MainWindow()68         self.UI.setupUi(self)69         self.setWindowTitle(u'Pyqt打开外部链接')70         self.connect(self.UI.openUrl, QtCore.SIGNAL('clicked()'), self.openUrl)71         self.connect(self.UI.webbrowser, QtCore.SIGNAL('clicked()'), self.webbrowser)72         self.UI.label.setText(u' 腾 讯 首 页 ')73 74     def openUrl(self):75         QtGui.QDesktopServices.openUrl(QtCore.QUrl('http://www.hao123.com'))76 77     def webbrowser(self):78         import webbrowser79         webbrowser.open('http://www.sina.com.cn/')80 81 82 if __name__ == "__main__":83     import sys84     app = QtGui.QApplication(sys.argv)85     MainWindow = OpenUrl()86     MainWindow.show()87     sys.exit(app.exec_())

效果：