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我想写一个记事本应用程序访问的QTextEdit，到目前为止，我还没有功能的GUI。我的gui的每个元素都在独立的函数中，然后在init方法中调用。 例如在create_new_file（个体经营）函数我试图从的QTextEdit .toPlainText获取文本（）方法，但我怎么可以访问text_edit_area（个体经营）函数这个领域？的Python PyQt4的从功能
import sys
from PyQt4 import QtGui, QtCore
class Editor(QtGui.QMainWindow):
def __init__(self):
super(Editor, self).__init__()
self.setGeometry(100, 100, 500, 500)
self.setWindowTitle('Text Editor')
self.setWindowIcon(QtGui.QIcon('editor.png'))
self.statusBar()
self.main_menu()
self.text_edit_area()
self.toolbar()
self.show()
def main_menu(self):
# CREATE MAIN MENU
menu = self.menuBar()
# MENU ACTIONS
file_exit_action = QtGui.QAction('&Exit', self)
file_exit_action.setShortcut('Ctrl+Q')
file_exit_action.setStatusTip('Close application')
file_exit_action.triggered.connect(self.close_application)
file_new_file_action = QtGui.QAction('&New File', self)
file_new_file_action.setShortcut('Ctrl+N')
file_new_file_action.setStatusTip('Create a new file')
file_new_file_action.triggered.connect(self.create_new_file)
file_open_file_action = QtGui.QAction('&Open File', self)
file_open_file_action.setShortcut('Ctrl+O')
file_open_file_action.setStatusTip('Open file')
file_open_file_action.triggered.connect(self.open_file)
file_save_file_action = QtGui.QAction('&Save File', self)
file_save_file_action.setShortcut('Ctrl+S')
file_save_file_action.setStatusTip('Save opened file')
file_save_file_action.triggered.connect(self.save_file)
edit_undo_action = QtGui.QAction('&Undo', self)
edit_undo_action.triggered.connect(self.undo)
format_change_font_action = QtGui.QAction('&Change Font', self)
format_change_font_action.triggered.connect(self.change_font)
view_maximize_action = QtGui.QAction('&Maximize', self)
view_maximize_action.triggered.connect(self.maximize)
help_about_action = QtGui.QAction('&About', self)
help_about_action.triggered.connect(self.about)
# FILE MENU
file_menu = menu.addMenu('&File')
file_menu.addAction(file_exit_action)
file_menu.addAction(file_new_file_action)
file_menu.addAction(file_open_file_action)
file_menu.addAction(file_save_file_action)
# EDIT MENU
edit_menu = menu.addMenu('&Edit')
edit_menu.addAction(edit_undo_action)
# FORMAT MENU
format_menu = menu.addMenu('&Format')
format_menu.addAction(format_change_font_action)
# VIEW MENU
view_menu = menu.addMenu('&View')
view_menu.addAction(view_maximize_action)
# HELP MENU
help_menu = menu.addMenu('&Help')
help_menu.addAction(help_about_action)
def toolbar(self):
# CREATE MAIN TOOLBAR
tool_bar = self.addToolBar('main toolbar')
# TOOLBAR ACTION
toolbar_new_file_action = QtGui.QAction(QtGui.QIcon('new_file.png'),
'&New File', self)
toolbar_new_file_action.triggered.connect(self.create_new_file)
toolbar_open_file_action = QtGui.QAction(QtGui.QIcon('open_file.png'),
'&Open File', self)
toolbar_open_file_action.triggered.connect(self.open_file)
# ADD TOOLBAR ACTIONS
tool_bar.addAction(toolbar_new_file_action)
tool_bar.addAction(toolbar_open_file_action)
def text_edit_area(self):
text_edit = QtGui.QTextEdit()
self.setCentralWidget(text_edit)
def close_application(self):
choice = QtGui.QMessageBox.question(self,
'Confirmation',
'Do you really want to quit?',
QtGui.QMessageBox.Yes |
QtGui.QMessageBox.No)
if choice == QtGui.QMessageBox.Yes:
sys.exit()
else:
pass
def create_new_file(self):
print('create new file')
def open_file(self):
print('open file')
def save_file(self):
print('saving file')
def undo(self):
print('undo')
def maximize(self):
print('maximize')
def change_font(self):
print('change font')
def about(self):
print('about')
def main():
app = QtGui.QApplication(sys.argv)
gui = Editor()
sys.exit(app.exec_())
if __name__ == '__main__':
main()
'self.text_edit = QtGui.QTextEdit（）'，等 – ekhumoro