小编fan*_*s-l的帖子

我有一个主要的PyQt窗口,当我们点击某个按钮时,我需要从中获取一串用户输入.

这是我的用户输入窗口的代码:

 class InputDialog(QtGui.QDialog):
   '''
   this is for when you need to get some user input text
   '''
   def __init__(self, parent=None, title='user input', label='comment', text=''):

       QtGui.QWidget.__init__(self, parent)

       #--Layout Stuff---------------------------#
       mainLayout = QtGui.QVBoxLayout()

       layout = QtGui.QHBoxLayout()
       self.label = QtGui.QLabel()
       self.label.setText(label)
       layout.addWidget(self.label)

       self.text = QtGui.QLineEdit(text)
       layout.addWidget(self.text)

       mainLayout.addLayout(layout)

       #--The Button------------------------------#
       layout = QtGui.QHBoxLayout()
       button = QtGui.QPushButton("okay") #string or icon
       self.connect(button, QtCore.SIGNAL("clicked()"), self.close)
       layout.addWidget(button)

       mainLayout.addLayout(layout)
       self.setLayout(mainLayout)

       self.resize(400, 60)
       self.setWindowTitle(title)

从主窗口,我说:

inputter = InputDialog(mainWindowUI, title="comments", label="comments", text="")
inputter.show()
comment = inputter.text.text()
print comment

即使用户键入注释并点击"确定",也会打印一个空字符串.显然因为主窗口脚本不等待InputDialog …