按钮未显示在QtWidget窗口中

Question

我创建了一个gridlayout审查GUi窗口。我在底部添加了标题，作者，评论标签和LineEdit以及Quit按钮。当我执行脚本时，退出按钮没有显示在输出窗口中。

     import sys
     from PySide import QtGui,QtCore

     class Example(QtGui.QWidget):

         def __init__(self):
            super(Example, self).__init__()

            self.initUI()

         def initUI(self):

             title = QtGui.QLabel('Title')
             author = QtGui.QLabel('Author')
             review = QtGui.QLabel('Review')

             titleEdit = QtGui.QLineEdit()
             authorEdit = QtGui.QLineEdit()
             reviewEdit = QtGui.QTextEdit()

             btn = QtGui.QPushButton("Quit", self)
             btn.resize(50,50)
             btn.clicked.connect(QtCore.QCoreApplication.instance().quit)

             grid = QtGui.QGridLayout()
             grid.setSpacing(10)

             grid.addWidget(title, 1, 0)
             grid.addWidget(titleEdit, 1, 1)

             grid.addWidget(author, 2, 0)
             grid.addWidget(authorEdit, 2, 1)

             grid.addWidget(review, 3, 0)
             grid.addWidget(reviewEdit, 3, 1, 5, 1)

             grid.addWidget(btn,6,1)

             self.setLayout(grid) 

             self.setGeometry(300, 300, 350, 300)
             self.setWindowTitle('Review')    
             self.show()



     def main():

         app = QtGui.QApplication(sys.argv)
         ex = Example()
         sys.exit(app.exec_())


     if __name__ == '__main__':
         main()

我无法找出问题所在。我在哪里做错了？

Answer 1

将grid.addWidget(btn, 6, 1)更改为grid.addWidget(btn, 8, 1)。您的QTextEdit以网格为单位具有高度5;因此3 + 5 = 8是第一个空位。