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我仍在学习 Python 和 PyQt4，当按下“Harvest”按钮时，我似乎无法在我的 gui 窗口上显示任何内容。我用粗体强调了我对信号和插槽的了解不足。

更新代码：

import sys, random, sqlite3, os
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4 import QtGui, QtCore
from geodesic import Ui_MainWindow

class gameWindow(QtGui.QMainWindow):
    def __init__(self, parent=None):
        super(gameWindow, self).__init__(parent)
        QtGui.QMainWindow.__init__(self)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

        buttonHarvest = QPushButton("Harvest") #Create the harvest button - but QT Designer made it?
        buttonMining = QPushButton("Mining") # Create the mining button - but QT Designer made it?
        self.label = QLabel("Example") # Set the empty label that's not showing

        self.connect(buttonHarvest, SIGNAL("clicked()"), self.skillHarvest) #Gets from def skillHarvest
        self.setWindowTitle("Geodesic")
        # Next -------------------------------------------------------------------------------------
        self.connect(buttonMining, SIGNAL("clicked()"), self.skillMining) #Gets from def skillMining

    def skillHarvest(self):
        harvest = "You find some roots."
        self.label.setText(harvest)

    def skillMining(self):
        mining = "You found some gold."
        self.label.setText(mining)

app = QApplication(sys.argv)
showWindow = gameWindow()
showWindow.show()
app.exec_()
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3 回答 3

1

在我看来，方法“one”的定义缩进很严重。

在您的示例中，它已被声明为 TestApp 的子功能。init ()，所以不能从外部调用 one()。尝试取消 one() 的定义，使其成为类 TestApp 的方法。

于 2009-10-25T07:26:55.540 回答
1

仅供参考，对于将信号连接到插槽，您可以使用更“pythonic”的形式：

buttonHarvest.clicked.connect(self.onButtonHarvest)
buttonMining.clicked.connect(self.onButtonMining)

它是这样的：

widget.signal.connect(slot)

你可以在这里找到更多信息

于 2011-02-02T09:34:37.667 回答
1

解决了：

import sys, random, sqlite3, os
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4 import QtGui, QtCore
from geodesic import Ui_MainWindow

class gameWindow(QtGui.QMainWindow):
    def __init__(self, parent=None):
        super(gameWindow, self).__init__(parent)
        QtGui.QMainWindow.__init__(self)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

        buttonHarvest = self.ui.buttonHarvest
        buttonMining = self.ui.buttonMining
        #showLabel = self.ui.label

        self.connect(buttonHarvest, SIGNAL("clicked()"), self.onButtonHarvest)
        # Next
        self.connect(buttonMining, SIGNAL("clicked()"), self.onButtonMining)

    def onButtonHarvest(self):
        harvest = "You find some roots."
        showLabel = self.ui.label
        showLabel.setText(harvest)

    def onButtonMining(self):
        mining = "You found some gold."
        showLabel = self.ui.label
        showLabel.setText(mining)

app = QApplication(sys.argv)
showWindow = gameWindow()
showWindow.show()
app.exec_()
于 2009-10-25T21:25:30.907 回答