Python mxd中图层信息

# -*- coding: cp936 -*-

import arcpy
 
#get mxd directory
myinput = arcpy.GetParameterAsText(0)
mxd=arcpy.mapping.MapDocument(myinput)
for df in arcpy.mapping.ListDataFrames(mxd):
    for lyr in arcpy.mapping.ListLayers(mxd, "", df):
        if lyr.supports("workspacePath"):
            arcpy.AddMessage("workspacePath:"+lyr.workspacePath)
        if lyr.supports("dataSource"):
            arcpy.AddMessage("dataSource:"+lyr.dataSource)
            if not arcpy.Exists(lyr.dataSource):
                 arcpy.AddMessage("dataSource:"+lyr.dataSource+"无效")
                
        if lyr.supports("datasetName"):
            arcpy.AddMessage("datasetName:"+lyr.datasetName)
        if lyr.isFeatureLayer:
            arcpy.AddMessage("layerName:"+lyr.longName)
            
#output mxd,the result show in the output mxd

del mxd