山中人_Kong: 找到qgs.initQgis()报错原因了，前面语句中的路径格式写错了,运行时没报错.应该是 QgsApplication.setPrefixPath("C:/Program Files/QGIS 3.16/apps/qgis-ltr", True)， 写成了QgsApplication.setPrefixPath("C:\Program Files\QGIS 3.16\apps\qgis-ltr", True)

山中人_Kong: 运行到qgs.initQgis()就报错了， 如下，请问啥问题？谢谢 QObject::connect: Cannot connect (null)::configurationAdded(QNetworkConfiguration) to QNetworkConfigurationManager::configurationAdded(QNetworkConfiguration) QObject::connect: Cannot connect (null)::configurationRemoved(QNetworkConfiguration) to QNetworkConfigurationManager::configurationRemoved(QNetworkConfiguration) QObject::connect: Cannot connect (null)::configurationChanged(QNetworkConfiguration) to QNetworkConfigurationManager::configurationChanged(QNetworkConfiguration) QObject::connect: Cannot connect (null)::onlineStateChanged(bool) to QNetworkConfigurationManager::onlineStateChanged(bool) QObject::connect: Cannot connect (null)::configurationUpdateComplete() to QNetworkConfigurationManager::updateCompleted()

weixin_54575789: 第一个运行会报错，为什么呀？ 第二个可以运行出来。有点不大明白求解释

m0_60984664: 按照楼主的就可以啦，图下面那个语句

code303: 你好，这个有源码可以参考下吗？