课本_第一章，简写符号的含义
1 #coding:utf-8
2 import arcpy as ap
3 import arcpy.mapping as mp
4 import os
5
6 mxd = mp.MapDocument('current')
7 adf = mxd.activeDataFrame
8 lyrs = mp.ListLayers(mxd)
9 lyr = lyrs[0]
1 #coding:utf-8
2 import arcpy as ap
3 import arcpy.mapping as mp
4 import os
5
6 mxd = mp.MapDocument('current')
7 adf = mxd.activeDataFrame
8 lyrs = mp.ListLayers(mxd)
9 lyr = lyrs[0]