python模拟网页浏览器

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

app = QApplication([])
window = QWidget()

# 添加4个控件
h_layout = QHBoxLayout()
l_edit = QLineEdit()
l_edit.setPlaceholderText('输入网址')
pbtn_search = QPushButton('搜一下')

pbtn_zoom_in = QPushButton('缩小')
pbtn_zoom_out = QPushButton('放大')
h_layout.addWidget(l_edit)
h_layout.addWidget(pbtn_search)
h_layout.addWidget(pbtn_zoom_in)
h_layout.addWidget(pbtn_zoom_out)
# 添加浏览器控件，以及整体垂直布局
v_layout = QVBoxLayout()
browser = QWebEngineView()
browser.load(QUrl(''))
v_layout.addLayout(h_layout)
v_layout.addWidget(browser)

# 搜索功能
def search():
    url = l_edit.text()
    browser.load(QUrl(url))

# 缩小功能
def zoom_in_func():
    browser.setZoomFactor(browser.zoomFactor() - 0.1)
# 放大功能
def zoom_out_func():
    browser.setZoomFactor(browser.zoomFactor() + 0.1)

# 按钮与方法绑定
pbtn_search.clicked.connect(search)
pbtn_zoom_in.clicked.connect(zoom_in_func)
pbtn_zoom_out.clicked.connect(zoom_out_func)

window.setLayout(v_layout)
window.show()
app.exec_()