python E:\terrait\TianJin\LFServer\QGIS\startup.py
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1.path ÉèÖãº
C:\Program Files\QGIS 3.16\apps\Python37;
C:\Program Files\QGIS 3.16\bin;
C:\Program Files\QGIS 3.16\apps\qgis-ltr\bin£»

2.PYTHONPATH ÉèÖãº
C:\Program Files\QGIS 3.16\apps\qgis-ltr\python;
C:\Program Files\QGIS 3.16\apps\qgis-ltr\bin;
C:\Program Files\QGIS 3.16\apps\qgis-ltr\python\qgis;
C:\Program Files\QGIS 3.16\apps\Python37\Lib;
C:\Program Files\QGIS 3.16\apps\Python37\Lib\site-packages;
C:\Program Files\QGIS 3.16\apps\Python37\DLLs;
C:\Program Files\QGIS 3.16\apps\Python37\Scripts;

3.PYTHONHOME ÉèÖãº
C:\Program Files\QGIS 3.16\apps\Python37;

4.¼ì²éÅäÖã¨Èç¹ûûÓÐÌáʾ´íÎ󣬼´¿ÉÒÔÈÏΪÅäÖóɹ¦£©£º
>>> from qgis.core import *
>>> import qgis.core

================================================================================
PyQGIS¿âµÄÎå¸ö°ü£º
qgis.core 				ÕâÑù¿ÉÒÔ·ÃÎÊÕû¸öQGISÖÐʹÓõĺËÐÄGIS¹¦ÄÜ¡£
qgis.gui  				ÕⶨÒåÁËһϵÁÐGUIС²¿¼þ£¬Äú¿ÉÒÔÔÚ×Ô¼ºµÄ³ÌÐòÖаüº¬ÕâЩС²¿¼þ¡£
qgis.analysis   		ÕâÌṩÁË¿Õ¼ä·ÖÎö¹¤¾ßÀ´·ÖÎöʸÁ¿ºÍÕ¤¸ñ¸ñʽÊý¾Ý¡£
qgis.networkanalysis	ÕâÌṩÁ˹¹½¨ºÍ·ÖÎöÍØÆ˵Ť¾ß¡£
qgis.utils 				ÕâʵÏÖÁ˸÷ÖÖ¹¦ÄÜ£¬ÔÊÐíÄúʹÓÃPythonʹÓÃQGISÓ¦ÓóÌÐò¡£
================================================================================