arcpy 添加字段，计算形心

import arcpy

# set workspace environment to your GDB
arcpy.env.workspace = r"C:\aka\117"
# list the feature classes
fcList = arcpy.ListFeatureClasses()

fieldName1 = "xCentroid"
fieldName2 = "yCentroid"
fieldPrecision = 18
fieldScale = 11

# loop through list
for fc in fcList:
    print(fc.encode("gbk"))
    Fields_lst = arcpy.ListFields(fc)
    #check if field exists, if not, add it and calculate
    if fieldName1 not in Fields_lst:
        arcpy.AddField_management(fc,fieldName1,"DOUBLE")
        arcpy.CalculateField_management(fc, fieldName1, "!SHAPE.CENTROID.X!","PYTHON_9.3")
       
    if fieldName2 not in Fields_lst:
        arcpy.AddField_management(fc,fieldName2,"DOUBLE")
        arcpy.CalculateField_management(fc, fieldName2, "!SHAPE.CENTROID.X!","PYTHON_9.3")