Python 使用表单1打开的表单2在任何按钮上都不起作用单击pyqt5

我有两张表格。主窗口窗体，第二个是gui窗体，它具有主要功能

第一个表单只有一个按钮，当单击“转到第二个表单”时，该按钮上只有一个按钮。第二个窗体打开，但功能在第二个窗体上不起作用。但当我只运行SecondForm时，它的功能100%有效。我不知道原因

首张/欢迎表格代码：

from PyQt5 import QtCore, QtGui, QtWidgets
import urllib
import speech_recognition as sr
import threading
import time
import import_ipynb
from Untitled12 import *

def connected(host="http://google.com"):
    try:
        urllib.request.urlopen(host)
        return True
    except:
        return False


class Ui_Function(object):
    def setupUi(self, Function):
        Function.setObjectName("Function")
        Function.resize(737, 600)
        Function.setStyleSheet("Background-color: #696969;")

        self.centralwidget = QtWidgets.QWidget(Function)
        self.centralwidget.setObjectName("centralwidget")
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(50, 70, 601, 31))
        self.lineEdit.setStyleSheet("color: #ffffff")
        self.lineEdit.setObjectName("lineEdit")

        self.lineEdit.setPlaceholderText("Enter Book Name...")
        self.label = QtWidgets.QLabel(self.centralwidget)
        #self.label.setGeometry(QtCore.QRect(50, 30, 151, 17))
        self.label.setGeometry(QtCore.QRect(50, 40, 191, 17))
        self.label.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"font-size: 15px;\n"
"}")
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(self.centralwidget)
        self.label_2.setGeometry(QtCore.QRect(320, 120, 67, 17))
        self.label_2.setObjectName("label_2")
        self.label_2.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"font-size: 20px;\n"
"}")
        self.label_3 = QtWidgets.QLabel(self.centralwidget)
        self.label_3.setGeometry(QtCore.QRect(50, 150, 311, 21))
        self.label_3.setObjectName("label_3")
        self.label_3.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"font-size: 15px;\n"
"}")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(50, 180, 121, 41))
        self.pushButton.setObjectName("pushButton")
        self.pushButton.setStyleSheet("QPushButton{\n"
"color: #ffffff;\n"
"background-color: #ff6347;\n"
"Border-radius: 10px;\n"
"}\n"
"QPushButton:hover{\n"
"color: #ffffff;\n"
"background-color: #ff6347;\n"
"Border-radius: 10px;\n"
"background-color: #ff4500;\n"
"font-weight:bold;\n"
"}")


        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit.setGeometry(QtCore.QRect(60, 320, 601, 231))
        self.textEdit.setObjectName("textEdit")
        self.textEdit.setStyleSheet("QTextEdit{\n"
"Background-color: #ffffff;\n"
"}")
        self.label_4 = QtWidgets.QLabel(self.centralwidget)
        self.label_4.setGeometry(QtCore.QRect(60, 290, 141, 21))
        self.label_4.setObjectName("label_4")
        self.label_4.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"font-size: 15px;\n"
"}")
        self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_2.setGeometry(QtCore.QRect(538, 110, 111, 41))
        self.pushButton_2.setObjectName("pushButton_2")
        self.pushButton_2.setStyleSheet("QPushButton{\n"
"color: #ffffff;\n"
"background-color: #ff6347;\n"
"Border-radius: 10px;\n"
"}\n"
"QPushButton:hover{\n"
"color: #ffffff;\n"
"Background-color: #ff6347;\n"
"Border-radius: 10px;\n"
"background-color: #ff4500;\n"
"font-weight: bold;\n"
"}")


        #self.pushButton_2.clicked.connect(Untitled12.give_rec("Angel of Hope"))

        self.label_5 = QtWidgets.QLabel(self.centralwidget)
        self.label_5.setGeometry(QtCore.QRect(60, 220, 241, 21))
        self.label_5.setObjectName("label_5")
        self.label_5.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"}")
        self.comboBox = QtWidgets.QComboBox(self.centralwidget)
        self.comboBox.setGeometry(QtCore.QRect(400, 180, 251, 31))
        self.comboBox.setStyleSheet("QcomboBox{\n"
"color: #ffffff;\n"
"Background-color: #ffffff;\n"
"font-family: Lucida Console;\n"
"}")
        self.comboBox.setObjectName("comboBox")
        self.comboBox.addItem("Your Book Name here...")
        self.comboBox.currentIndexChanged.connect(self.changeText)

        Function.setCentralWidget(self.centralwidget)

        self.retranslateUi(Function)
        QtCore.QMetaObject.connectSlotsByName(Function)

    def changeText(self, index):
        self.lineEdit.setText(self.comboBox.itemText(index))

    def retranslateUi(self, Function):
        _translate = QtCore.QCoreApplication.translate
        Function.setWindowTitle(_translate("Function", "MainWindow"))
        self.label.setText(_translate("Function", "Enter the Book Name:"))
        self.label_2.setText(_translate("Function", "OR"))
        self.label_3.setText(
            _translate("Function", "Write the Book Name by your Voice:")
        )
        self.pushButton.setText(_translate("Function", "Click and Say"))
        self.label_4.setText(_translate("Function", "Recommendations:"))
        self.pushButton_2.setText(_translate("Function", "Search"))
        self.label_5.setText(_translate("Function", "Suggestions..."))


class SpeechWorker(QtCore.QObject):
    messageChanged = QtCore.pyqtSignal(str)
    itemsChanged = QtCore.pyqtSignal(list)

    def speech(self):
        threading.Thread(target=self._speech, daemon=True).start()

    def _speech(self):
        if connected():
            r = sr.Recognizer()
            with sr.Microphone() as source:
                r.adjust_for_ambient_noise(source)
                self.messageChanged.emit("Listening...")
                time.sleep(1)
                # read the audio data from the default microphone
                try:
                    audio_data = r.listen(source, timeout=5)
                except sr.WaitTimeoutError as e:
                    print("Timeout; {0}".format(e))
                self.messageChanged.emit("Time over")
                time.sleep(1)
                self.messageChanged.emit("Recognizing...")
                time.sleep(1)
                # convert speech to text
                text = r.recognize_google(audio_data, language="en-UK", show_all=True)
                try:
                    self.messageChanged.emit("You said:")
                    self.itemsChanged.emit([])
                    list1 = []
                    if len(text) > 0:
                        print(len(text["alternative"]))
                        for x in range(0, len(text["alternative"])):
                            list1.append(text["alternative"][x]["transcript"])
                        self.itemsChanged.emit(list1)
                    else:
                        time.sleep(1)
                        self.messageChanged.emit("\tNothing")

                except LookupError:
                    time.sleep(1)
                    self.messageChanged.emit("Could not Understand Value")

                except sr.UnknownValueError:
                    time.sleep(1)
                    self.messageChanged.emit(
                        "Voice Recognition could not understand audio"
                    )

                except sr.RequestError as e:
                    time.sleep(1)
                    self.messageChanged.emit(
                        "Voice Recognition could not request results ; {0}".format(e)
                    )
        else:
            time.sleep(1)
            self.messageChanged.emit(
                "NO Internet Connection. \nCheck your Internet Connection"
            )
        time.sleep(1)
        self.messageChanged.emit("Completed")
        time.sleep(2)
        self.messageChanged.emit("Suggestions...")


class Function(QtWidgets.QMainWindow, Ui_Function):
    def __init__(self, parent=None):
        super(Function, self).__init__(parent)
        self.setupUi(self)

        self.worker = SpeechWorker()
        self.worker.messageChanged.connect(self.updateMessage)
        self.worker.itemsChanged.connect(self.updateItems)

        self.pushButton.clicked.connect(self.worker.speech)
        self.pushButton_2.clicked.connect(self.updateEditBox)


    @QtCore.pyqtSlot(str)
    def updateMessage(self, message):
        self.label_5.setText(message)
        self.label_5.adjustSize()

    @QtCore.pyqtSlot(list)
    def updateItems(self, items):
        self.comboBox.clear()
        self.comboBox.addItems(items)
    @QtCore.pyqtSlot()
    def updateEditBox(self):
        print(self.lineEdit.text())
        string=give_rec(self.lineEdit.text())
        self.textEdit.clear()
        self.textEdit.setText("\tRecommendations of "+self.lineEdit.text().title()+"\t")
        i=1
        for names in string:
            self.textEdit.append(str(i)+" - "+str(names))
            i=i+1
        self.comboBox.clear()
        self.lineEdit.setText("")

if __name__ == "__main__":
    import sys

    app = QtWidgets.QApplication(sys.argv)
    w = Function()
    w.show()
    app.exec_()

untitled12 ipynb不包括gui。它只是一个算法的实现，返回一个列表，然后以文本编辑的形式显示

from PyQt5 import QtCore, QtGui, QtWidgets
import urllib
import speech_recognition as sr
import threading
import time
import import_ipynb
from gui import Ui_Function

class Ui_welcome(object):
    def openfunc(self):
        self.window = QtWidgets.QMainWindow()
        self.ui = Ui_Function()
        self.ui.setupUi(self.window)
        welcome.hide()
        self.window.show()
    def setupUi(self, welcome):
        welcome.setObjectName("welcome")
        welcome.resize(739, 600)
        welcome.setStyleSheet("Background-color: #696969;")
        self.centralwidget = QtWidgets.QWidget(welcome)
        self.centralwidget.setObjectName("centralwidget")
        self.label = QtWidgets.QLabel(self.centralwidget)
        self.label.setGeometry(QtCore.QRect(70, 90, 601, 61))
        self.label.setStyleSheet("\n"
"font-family: Lucida Console;\n"
"font-size: 25px;\n"
"font-weight: bold;\n"
"font-style: italic;\n"
"color: #ffffff;\n"
"")
        self.label.setObjectName("label")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(240, 250, 281, 71))
        self.pushButton.setStyleSheet("QPushButton{\n"
"color: #ffffff;\n"
"background-color: #ff6347;\n"
"Border-radius: 30px;\n"
"font-size:30px\n"
"}\n"
"QPushButton:hover{\n"
"color: #ffffff;\n"
"background-color: #ff6347;\n"
"Border-radius: 30px;\n"
"background-color: #ff4500;\n"
"font-weight: bold;\n"
"}")
        self.pushButton.setObjectName("pushButton")
        self.pushButton.clicked.connect(self.openfunc)
        welcome.setCentralWidget(self.centralwidget)

        self.retranslateUi(welcome)
        QtCore.QMetaObject.connectSlotsByName(welcome)

    def retranslateUi(self, welcome):
        _translate = QtCore.QCoreApplication.translate
        welcome.setWindowTitle(_translate("welcome", "MainWindow"))
        self.label.setText(_translate("welcome", "Welcome To Book Recommendation System"))
        self.pushButton.setText(_translate("welcome", "Let\'s get started"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    welcome = QtWidgets.QMainWindow()
    ui = Ui_welcome()
    ui.setupUi(welcome)
    welcome.show()
    app.exec_()

第二个表格代码：

from PyQt5 import QtCore, QtGui, QtWidgets
import urllib
import speech_recognition as sr
import threading
import time
import import_ipynb
from Untitled12 import *

def connected(host="http://google.com"):
    try:
        urllib.request.urlopen(host)
        return True
    except:
        return False


class Ui_Function(object):
    def setupUi(self, Function):
        Function.setObjectName("Function")
        Function.resize(737, 600)
        Function.setStyleSheet("Background-color: #696969;")

        self.centralwidget = QtWidgets.QWidget(Function)
        self.centralwidget.setObjectName("centralwidget")
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(50, 70, 601, 31))
        self.lineEdit.setStyleSheet("color: #ffffff")
        self.lineEdit.setObjectName("lineEdit")

        self.lineEdit.setPlaceholderText("Enter Book Name...")
        self.label = QtWidgets.QLabel(self.centralwidget)
        #self.label.setGeometry(QtCore.QRect(50, 30, 151, 17))
        self.label.setGeometry(QtCore.QRect(50, 40, 191, 17))
        self.label.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"font-size: 15px;\n"
"}")
        self.label.setObjectName("label")
        self.label_2 = QtWidgets.QLabel(self.centralwidget)
        self.label_2.setGeometry(QtCore.QRect(320, 120, 67, 17))
        self.label_2.setObjectName("label_2")
        self.label_2.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"font-size: 20px;\n"
"}")
        self.label_3 = QtWidgets.QLabel(self.centralwidget)
        self.label_3.setGeometry(QtCore.QRect(50, 150, 311, 21))
        self.label_3.setObjectName("label_3")
        self.label_3.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"font-size: 15px;\n"
"}")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(50, 180, 121, 41))
        self.pushButton.setObjectName("pushButton")
        self.pushButton.setStyleSheet("QPushButton{\n"
"color: #ffffff;\n"
"background-color: #ff6347;\n"
"Border-radius: 10px;\n"
"}\n"
"QPushButton:hover{\n"
"color: #ffffff;\n"
"background-color: #ff6347;\n"
"Border-radius: 10px;\n"
"background-color: #ff4500;\n"
"font-weight:bold;\n"
"}")


        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit.setGeometry(QtCore.QRect(60, 320, 601, 231))
        self.textEdit.setObjectName("textEdit")
        self.textEdit.setStyleSheet("QTextEdit{\n"
"Background-color: #ffffff;\n"
"}")
        self.label_4 = QtWidgets.QLabel(self.centralwidget)
        self.label_4.setGeometry(QtCore.QRect(60, 290, 141, 21))
        self.label_4.setObjectName("label_4")
        self.label_4.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"font-size: 15px;\n"
"}")
        self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_2.setGeometry(QtCore.QRect(538, 110, 111, 41))
        self.pushButton_2.setObjectName("pushButton_2")
        self.pushButton_2.setStyleSheet("QPushButton{\n"
"color: #ffffff;\n"
"background-color: #ff6347;\n"
"Border-radius: 10px;\n"
"}\n"
"QPushButton:hover{\n"
"color: #ffffff;\n"
"Background-color: #ff6347;\n"
"Border-radius: 10px;\n"
"background-color: #ff4500;\n"
"font-weight: bold;\n"
"}")


        #self.pushButton_2.clicked.connect(Untitled12.give_rec("Angel of Hope"))

        self.label_5 = QtWidgets.QLabel(self.centralwidget)
        self.label_5.setGeometry(QtCore.QRect(60, 220, 241, 21))
        self.label_5.setObjectName("label_5")
        self.label_5.setStyleSheet("QLabel{\n"
"color: #ffffff;\n"
"font-family: Lucida Console;\n"
"}")
        self.comboBox = QtWidgets.QComboBox(self.centralwidget)
        self.comboBox.setGeometry(QtCore.QRect(400, 180, 251, 31))
        self.comboBox.setStyleSheet("QcomboBox{\n"
"color: #ffffff;\n"
"Background-color: #ffffff;\n"
"font-family: Lucida Console;\n"
"}")
        self.comboBox.setObjectName("comboBox")
        self.comboBox.addItem("Your Book Name here...")
        self.comboBox.currentIndexChanged.connect(self.changeText)

        Function.setCentralWidget(self.centralwidget)

        self.retranslateUi(Function)
        QtCore.QMetaObject.connectSlotsByName(Function)

    def changeText(self, index):
        self.lineEdit.setText(self.comboBox.itemText(index))

    def retranslateUi(self, Function):
        _translate = QtCore.QCoreApplication.translate
        Function.setWindowTitle(_translate("Function", "MainWindow"))
        self.label.setText(_translate("Function", "Enter the Book Name:"))
        self.label_2.setText(_translate("Function", "OR"))
        self.label_3.setText(
            _translate("Function", "Write the Book Name by your Voice:")
        )
        self.pushButton.setText(_translate("Function", "Click and Say"))
        self.label_4.setText(_translate("Function", "Recommendations:"))
        self.pushButton_2.setText(_translate("Function", "Search"))
        self.label_5.setText(_translate("Function", "Suggestions..."))


class SpeechWorker(QtCore.QObject):
    messageChanged = QtCore.pyqtSignal(str)
    itemsChanged = QtCore.pyqtSignal(list)

    def speech(self):
        threading.Thread(target=self._speech, daemon=True).start()

    def _speech(self):
        if connected():
            r = sr.Recognizer()
            with sr.Microphone() as source:
                r.adjust_for_ambient_noise(source)
                self.messageChanged.emit("Listening...")
                time.sleep(1)
                # read the audio data from the default microphone
                try:
                    audio_data = r.listen(source, timeout=5)
                except sr.WaitTimeoutError as e:
                    print("Timeout; {0}".format(e))
                self.messageChanged.emit("Time over")
                time.sleep(1)
                self.messageChanged.emit("Recognizing...")
                time.sleep(1)
                # convert speech to text
                text = r.recognize_google(audio_data, language="en-UK", show_all=True)
                try:
                    self.messageChanged.emit("You said:")
                    self.itemsChanged.emit([])
                    list1 = []
                    if len(text) > 0:
                        print(len(text["alternative"]))
                        for x in range(0, len(text["alternative"])):
                            list1.append(text["alternative"][x]["transcript"])
                        self.itemsChanged.emit(list1)
                    else:
                        time.sleep(1)
                        self.messageChanged.emit("\tNothing")

                except LookupError:
                    time.sleep(1)
                    self.messageChanged.emit("Could not Understand Value")

                except sr.UnknownValueError:
                    time.sleep(1)
                    self.messageChanged.emit(
                        "Voice Recognition could not understand audio"
                    )

                except sr.RequestError as e:
                    time.sleep(1)
                    self.messageChanged.emit(
                        "Voice Recognition could not request results ; {0}".format(e)
                    )
        else:
            time.sleep(1)
            self.messageChanged.emit(
                "NO Internet Connection. \nCheck your Internet Connection"
            )
        time.sleep(1)
        self.messageChanged.emit("Completed")
        time.sleep(2)
        self.messageChanged.emit("Suggestions...")


class Function(QtWidgets.QMainWindow, Ui_Function):
    def __init__(self, parent=None):
        super(Function, self).__init__(parent)
        self.setupUi(self)

        self.worker = SpeechWorker()
        self.worker.messageChanged.connect(self.updateMessage)
        self.worker.itemsChanged.connect(self.updateItems)

        self.pushButton.clicked.connect(self.worker.speech)
        self.pushButton_2.clicked.connect(self.updateEditBox)


    @QtCore.pyqtSlot(str)
    def updateMessage(self, message):
        self.label_5.setText(message)
        self.label_5.adjustSize()

    @QtCore.pyqtSlot(list)
    def updateItems(self, items):
        self.comboBox.clear()
        self.comboBox.addItems(items)
    @QtCore.pyqtSlot()
    def updateEditBox(self):
        print(self.lineEdit.text())
        string=give_rec(self.lineEdit.text())
        self.textEdit.clear()
        self.textEdit.setText("\tRecommendations of "+self.lineEdit.text().title()+"\t")
        i=1
        for names in string:
            self.textEdit.append(str(i)+" - "+str(names))
            i=i+1
        self.comboBox.clear()
        self.lineEdit.setText("")

if __name__ == "__main__":
    import sys

    app = QtWidgets.QApplication(sys.argv)
    w = Function()
    w.show()
    app.exec_()

这是form2的功能，当我只运行第二个form时，它就起作用了。

说明： Qt Designer生成的Ui_函数类仅用于填充小部件，因此您使用它来填充“self.window”，这样它就不会具有我在函数类中实现的逻辑

我建议您阅读，这样您就知道了，因为不建议修改Qt设计器生成的类，而是创建另一个从适当的小部件继承并实现必要逻辑的类

解决方案：

从PyQt5导入QtCore、QtGui、qtwidget
从gui导入功能
类Ui_欢迎（对象）：
def setupUi（自我，欢迎）：
欢迎。setObjectName（“欢迎”）
欢迎。调整大小（739600）
welcome.setStyleSheet（“背景色：#696969；”）
self.centralwidget=qtwidts.QWidget（欢迎使用）
self.centralwidget.setObjectName（“centralwidget”）
self.label=qtwidts.QLabel（self.centralwidget）
self.label.setGeometry（QtCore.QRect（70,9060161））
self.label.setStyleSheet(
“\n”
“字体系列：Lucida控制台；\n”
“字体大小：25px；\n”
“字体大小：粗体；\n”
“字体样式：斜体；\n”
“颜色：#ffffff；\n”
""
)
self.label.setObjectName（“标签”）
self.pushButton=qtwidts.QPushButton（self.centralwidget）
自身按钮设置几何（QtCore.QRect（240250281，71））
self.butdown.setStyleSheet(
“QPushButton{\n”
“颜色：#ffffff；\n”
“背景色：#ff6347；\n”
“边界半径：30px；\n”
“字体大小：30px\n”
“}\n”
“QPushButton:悬停{\n”
“颜色：#ffffff；\n”
“背景色：#ff6347；\n”
“边界半径：30px；\n”
“背景色：#ff4500；\n”
“字体大小：粗体；\n”
"}"
)
self.butdown.setObjectName（“butdown”）
welcome.setCentralWidget（self.centralwidget）
自我重译（欢迎）
QtCore.QMetaObject.connectSlotsByName（欢迎使用）
def重新传输（自我，欢迎）：
_translate=QtCore.QCoreApplication.translate
welcome.setWindowTitle（_translate（“欢迎”，“主窗口”））
self.label.setText(
_翻译（“欢迎”，“欢迎使用图书推荐系统”）
)
self.putton.setText（_translate（“欢迎”，“让我们开始”））
类欢迎（QtWidgets.QMainWindow，Ui_欢迎）：
def uuu init uuu（self，parent=None）：
超级（欢迎，自我）。\uuuuu初始化\uuuuuuuu（家长）
self.setupUi（self）
self.button.clicked.connect（self.openfunc）
self.window=函数（）
def openfunc（自身）：
self.window.show（）
self.hide（）
如果名称=“\uuuuu main\uuuuuuuu”：
导入系统
app=qtwidts.QApplication（sys.argv）
w=欢迎（）
w、 show（）
sys.exit（app.exec_（））

---

我建议您回顾一下OOP注释，或者学习有关该主题的课程，因为如果您打算使用PyQt，这是一个最低且必要的要求。

好的。我非常了解python中的OOP。但pyqt5是我无法理解的东西。有些小部件可以工作，但有些不能，它们需要线程。甚至打开一个新的表单也很困难。事实上，我在c#windows窗体上工作过，这就是为什么我在思考它们的意义。@HinaKhadim你知道线程的用途是什么吗？尤其是在GUI方面。是的，我知道线程的用途，但在GUI方面我不知道。因为正如我所说，我对pyqt5是新手。这是我开始学习的第一个gui工具。我已经学会了c#windows窗体。在这些方面，我在pyqt5中没有遇到类似的问题。pyqt5是不同的。但是我会学习。@HinaKhadim通常线程的目标是不阻塞独占任务。对于任何GUI，事件循环都会占用整个主线程，因此独占任务（耗时的任务）不能在同一个线程上执行，而必须在另一个线程上执行。这一概念也适用于C#或任何其他技术。当然，在C#中，您没有遇到过需要通过GUI执行的大量任务。明白了。是的，在c#中，我不需要执行需要线程的任务。多谢各位