from PySide2.QtCore import * from PySide2.QtWidgets import * from PySide2.QtWebEngineWidgets import * class TabWidget(QTabWidget): def init(self, *args, **kwargs): QTabWidget.init(self, *args, **kwargs) # 添加搜索框和按钮 self.search_box = QLineEdit(self) self.search_box.returnPressed.connect(self.search) self.search_button = QPushButton("搜索", self) self.search_button.clicked.connect(self.search) # 添加搜索栏到工具栏 toolbar = QToolBar(self) toolbar.addWidget(self.search_box) toolbar.addWidget(self.search_button) self.setCornerWidget(toolbar, Qt.TopRightCorner) # 加载默认页面 url = QUrl("https://www.baidu.com") view = HtmlView(self) view.load(url) ix = self.addTab(view, "加载中 ...") self.resize(800, 600) def search(self): # 获取搜索框中的文本 search_term = self.search_box.text() # 将中文转换为URL编码 encoded_term = QUrl.fromEncoded(search_term.encode('utf-8')).toEncoded() # 构建搜索URL url = QUrl("https://www.baidu.com/s?wd={}".format(encoded_term.decode('utf-8'))) # 加载搜索结果页面 view = HtmlView(self) view.load(url) ix = self.addTab(view, "加载中 ...") self.setCurrentIndex(ix) class HtmlView(QWebEngineView): def init(self, *args, **kwargs): QWebEngineView.init(self, *args, **kwargs) self.tab = self.parent() def createWindow(self, windowType): if windowType == QWebEnginePage.WebBrowserTab: webView = HtmlView(self.tab) ix = self.tab.addTab(webView, "加载中 ...") self.tab.setCurrentIndex(ix) return webView return QWebEngineView.createWindow(self, windowType) def load(self, url): # 重载load方法，接受一个URL参数 super().load(url) if name == "main": import sys app = QApplication(sys.argv) main = TabWidget() main.show() sys.exit(app.exec_())，上述代码提示错误AttributeError: 'PySide2.QtCore.QByteArray' object has no attribute 'decode'

这个错误可能是因为在代码的第29行，`encoded_term.decode('utf-8')` 中的 `encoded_term` 是一个 `QByteArray` 类型的对象，而该对象并没有 `decode` 方法。解决这个问题的方法是将 `encoded_term` 转换为 Python 的字符串类型再进行解码，可以将第29行的代码修改为 `encoded_term.data().decode('utf-8')`。

相关问题

TypeError: 'PySide2.QtCore.QObject.connect' called with wrong argument types: PySide2.QtCore.QObject.connect(QPushButton, str, QPushButton) Supported signatures: PySide2.QtCore.QObject.connect(PySide2.QtCore.QObject, bytes, typing.Callable, PySide2.QtCore.Qt.ConnectionType = PySide2.QtCore.Qt.ConnectionType.AutoConnection) PySide2.QtCore.QObject.connect(bytes, typing.Callable, PySide2.QtCore.Qt.ConnectionType = PySide2.QtCore.Qt.ConnectionType.AutoConnection) PySide2.QtCore.QObject.connect(bytes, PySide2.QtCore.QObject, bytes, PySide2.QtCore.Qt.ConnectionType = PySide2.QtCore.Qt.ConnectionType.AutoConnection) PySide2.QtCore.QObject.connect(PySide2.QtCore.QObject, bytes, bytes, PySide2.QtCore.Qt.ConnectionType = PySide2.QtCore.Qt.ConnectionType.AutoConnection) PySide2.QtCore.QObject.connect(PySide2.QtCore.QObject, PySide2.QtCore.QMetaMethod, PySide2.QtCore.QObject, PySide2.QtCore.QMetaMethod, PySide2.QtCore.Qt.ConnectionType = PySide2.QtCore.Qt.ConnectionType.AutoConnection) PySide2.QtCore.QObject.connect(PySide2.QtCore.QObject, bytes, PySide2.QtCore.QObject, bytes, PySide2.QtCore.Qt.ConnectionType = PySide2.QtCore.Qt.ConnectionType.AutoConnection) 进程已结束，退出代码为 1

这个错误信息是因为您在使用 PySide2 连接信号和槽时，传入的参数不正确。通常，PySide2.QtCore.QObject.connect() 方法需要传入 4 个参数，分别是信号源、信号、槽源和槽。

比如说，如果您要将 QPushButton 的 clicked 信号连接到另一个 QPushButton 的 clicked 槽，可以这样写：

from PySide2.QtWidgets import QApplication, QMainWindow, QPushButton

app = QApplication([])
window = QMainWindow()
button1 = QPushButton("Button 1")
button2 = QPushButton("Button 2")

# 将 button1 的 clicked 信号连接到 button2 的 clicked 槽
button1.clicked.connect(button2.clicked)

window.setCentralWidget(button1)
window.show()
app.exec_()

请仔细检查您的代码，确保传入的参数与上述格式一致。如果问题仍然存在，请提供更多代码和上下文信息，以便我们更好地帮助您解决问题。

from PySide2.QtCore import * from PySide2.QtWidgets import * from PySide2.QtWebEngineWidgets import * class TabWidget(QTabWidget): def __init__(self, *args, **kwargs): QTabWidget.__init__(self, *args, **kwargs) url = QUrl("https://www.163.com") view = HtmlView(self) view.load(url) ix = self.addTab(view, "加载中 ...") self.resize(800, 600) class HtmlView(QWebEngineView): def __init__(self, *args, **kwargs): QWebEngineView.__init__(self, *args, **kwargs) self.tab = self.parent() def createWindow(self, windowType): if windowType == QWebEnginePage.WebBrowserTab: webView = HtmlView(self.tab) ix = self.tab.addTab(webView, "加载中 ...") self.tab.setCurrentIndex(ix) return webView return QWebEngineView.createWindow(self, windowType) if __name__ == "__main__": import sys app = QApplication(sys.argv) main = TabWidget() main.show() sys.exit(app.exec_())，在这段代码中添加关闭网页的按钮和功能。

你可以在 `TabWidget` 类中添加一个按钮，并连接到一个槽函数来关闭当前的 `HtmlView`。以下是修改后的代码：

from PySide2.QtCore import *
from PySide2.QtWidgets import *
from PySide2.QtWebEngineWidgets import *

class TabWidget(QTabWidget):
    def __init__(self, *args, **kwargs):
        QTabWidget.__init__(self, *args, **kwargs)
        url = QUrl("https://www.163.com")
        view = HtmlView(self)
        view.load(url)
        ix = self.addTab(view, "加载中 ...")
        self.resize(800, 600)
        
        # 添加关闭按钮
        closeButton = QPushButton("关闭网页", self)
        closeButton.clicked.connect(self.closeCurrentTab)
        self.setCornerWidget(closeButton)
        
    # 关闭当前标签页
    def closeCurrentTab(self):
        ix = self.currentIndex()
        if ix >= 0:
            view = self.widget(ix)
            self.removeTab(ix)
            view.deleteLater()
        

class HtmlView(QWebEngineView):
    def __init__(self, *args, **kwargs):
        QWebEngineView.__init__(self, *args, **kwargs)
        self.tab = self.parent()

    def createWindow(self, windowType):
        if windowType == QWebEnginePage.WebBrowserTab:
            webView = HtmlView(self.tab)
            ix = self.tab.addTab(webView, "加载中 ...")
            self.tab.setCurrentIndex(ix)
            return webView
        return QWebEngineView.createWindow(self, windowType)

if __name__ == "__main__":
    import sys
    app = QApplication(sys.argv)
    main = TabWidget()
    main.show()
    sys.exit(app.exec_())

在上面的代码中，我们添加了一个按钮 `closeButton`，并将其设置为窗口的角落部件，这样它就会出现在标签页的右上角。当用户点击按钮时，它会触发 `closeCurrentTab` 槽函数，该函数会关闭当前标签页，并删除对应的 `HtmlView` 对象。