pyqt6 pyside6如何显示网络图片

在PyQt6和PySide6中，可以使用QPixmap类来显示网络图片。具体步骤如下：

1. 导入必要的模块

from PyQt6.QtCore import QUrl
from PyQt6.QtGui import QPixmap
from PyQt6.QtNetwork import QNetworkAccessManager, QNetworkRequest, QNetworkReply
from PyQt6.QtWidgets import QApplication, QLabel, QMainWindow

2. 创建QNetworkAccessManager对象

manager = QNetworkAccessManager()

3. 发送网络请求并接收响应

url = QUrl("https://example.com/image.jpg")
request = QNetworkRequest(url)
reply = manager.get(request)

4. 在响应结束时接收数据并显示图片

def on_reply_finished(reply):
    data = reply.readAll()
    pixmap = QPixmap()
    pixmap.loadFromData(data)
    label.setPixmap(pixmap)

reply.finished.connect(on_reply_finished)

完整代码示例：

from PyQt6.QtCore import QUrl
from PyQt6.QtGui import QPixmap
from PyQt6.QtNetwork import QNetworkAccessManager, QNetworkRequest, QNetworkReply
from PyQt6.QtWidgets import QApplication, QLabel, QMainWindow

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        
        self.label = QLabel(self)
        self.setCentralWidget(self.label)
        
        url = QUrl("https://example.com/image.jpg")
        request = QNetworkRequest(url)
        manager = QNetworkAccessManager()
        reply = manager.get(request)
        reply.finished.connect(self.on_reply_finished)
        
    def on_reply_finished(self, reply):
        data = reply.readAll()
        pixmap = QPixmap()
        pixmap.loadFromData(data)
        self.label.setPixmap(pixmap)

if __name__ == "__main__":
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec()

运行该程序，即可显示网络图片。