利用arcpy的SearchCursor可以对要素的字段进行操作。以下例子为使用arcpy检查某一字段当中是否存在空值。
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# -*- coding:gbk -*- import os,arcpy from arcpy import env def check(mdbpath): mdbnames=[] env.workspace=mdbpath fcs=arcpy.ListFeatureClasses() for fc in fcs: rows=arcpy.SearchCursor(fc,"","","","") for row in rows: try: #数据中有BM这一字段，这里只为检查此字段是否有空值 if row.BM==None or row.BM=="": print fc break except: #print fc+"----------no BM" break inputpath=r"F:\最终数据"for root,dir,files in os.walk(inputpath): for file in files: if file[-4:]=='.mdb': mdbpath=os.path.join(root,file) check(mdbpath) print "Done" |
