Python PyQt5设计师。获取要运行的按钮事件

我正在尝试使用Qt设计器使按钮事件处理程序工作

我在Python 3.6中使用Anaconda Spyder

表单出现，但按钮

btn\u browse

不起作用。“行”编辑框中有一个光标，您可以在其中键入

下面是从ui自动生成的Python文件。它被称为

file\u reader.py

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_Dialog(object):
    def setupUi(self, Dialog):
        Dialog.setObjectName("Dialog")
        Dialog.resize(640, 320)
        self.btn_browse = QtWidgets.QPushButton(Dialog)
        self.btn_browse.setGeometry(QtCore.QRect(220, 50, 113, 32))
        self.btn_browse.setObjectName("btn_browse")
        self.lineEdit = QtWidgets.QLineEdit(Dialog)
        self.lineEdit.setGeometry(QtCore.QRect(170, 120, 241, 131))
        self.lineEdit.setObjectName("lineEdit")
        self.retranslateUi(Dialog)
        QtCore.QMetaObject.connectSlotsByName(Dialog)

    def retranslateUi(self, Dialog):
        _translate = QtCore.QCoreApplication.translate
        Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
        self.btn_browse.setText(_translate("Dialog", "MyButton"))

我使用的代码（大部分来自QtDesigner文档站点）是

我认为没有调用函数

browse\u folder

。我认为问题可能是正在使用的QDialog类，而不是QMainForm。我

我正在努力。另外，我不确定ui转换器中的x开关做什么

---

我在这里查看了几个答案，看不出我做错了什么。

您的代码有以下问题：

• 您不是在创建对话框对象，而是一个

  QDialog

  对话框，其中填充了

  Ui\u对话框

  ，该对话框没有浏览文件夹方法或连接

• QFileDialog

  是

  qtwidts

  的一部分，它不是

  QtGui

  的一部分，您可能正在使用

  PyQt4

  的示例

• 我假设

  listWidget

  来自

  Ui\u对话框

  ，因此您必须通过

  Ui

  登录

---

---

您的意思是window=Dialog（）应该是window=QDialog（）？这两个我都试过了。@nerak99你试过我建议的代码了吗？嘿，对不起，艾伦斯。我不是这里的常客。在我注释掉“self.ui.colorDepthCombo.addItem”（“2种颜色（每像素1位）”）之后，我找到了答案。谢谢是父类中的colorDepthCombo.additem（）方法吗？如果是这样的话，我应该通过super（）或其他类似的名字来称呼它“Skandix”。如何从类中调用QDialog方法？@nerak99 QDialog不是一个方法，它是一个类，调用它是什么意思？

from PyQt5 import QtGui
from PyQt5.QtWidgets import QDialog, QApplication
from file_reader import Ui_Dialog
class Dialog(QDialog):
    def __init__(self):
        super(Dialog, self).__init__()

        # Set up the user interface from Designer.
        self.ui = Ui_Dialog()
        self.ui.setupUi(self)

        # Make some local modifications.
        self.ui.colorDepthCombo.addItem("2 colors (1 bit per pixel)")

        # Connect up the buttons.
        self.ui.btn_browse.clicked.connect(self.browse_folder)


    def browse_folder(self):
        #exit
        print("Hello")
        #self.textBrowser.clear() # In case there are any existing elements in the list
        directory = QtGui.QFileDialog.getExistingDirectory(self,"Pick a folder")
        # execute getExistingDirectory dialog and set the directory variable to be equal
        # to the user selected directory

        if directory: # if user didn't pick a directory don't continue
            for file_name in os.listdir(directory): # for all files, if any, in the directory
                self.listWidget.addItem(file_name)  # add file to the listWidget




import sys        
app = QApplication(sys.argv)
window = Dialog() #Also tried QDialog() here
ui = Ui_Dialog()
ui.setupUi(window)

window.show()
sys.exit(app.exec_())

from PyQt5.QtWidgets import QDialog, QApplication, QFileDialog
from file_reader import Ui_Dialog
import os

class Dialog(QDialog):
    def __init__(self):
        super(Dialog, self).__init__()

        # Set up the user interface from Designer.
        self.ui = Ui_Dialog()
        self.ui.setupUi(self)

        # Make some local modifications.
        self.ui.colorDepthCombo.addItem("2 colors (1 bit per pixel)")

        # Connect up the buttons.
        self.ui.btn_browse.clicked.connect(self.browse_folder)


    def browse_folder(self):
        #exit
        print("Hello")
        #self.textBrowser.clear() # In case there are any existing elements in the list
        directory = QFileDialog.getExistingDirectory(self,"Pick a folder")
        # execute getExistingDirectory dialog and set the directory variable to be equal
        # to the user selected directory

        if directory: # if user didn't pick a directory don't continue
            for file_name in os.listdir(directory): # for all files, if any, in the directory
                self.ui.listWidget.addItem(file_name)  # add file to the listWidget


import sys        
app = QApplication(sys.argv)
window = Dialog()
window.show()
sys.exit(app.exec_())