arcgis python 把一个图层数据合并在一起

def getLayerGeomtry(inFeature):
   
    num=getCount(inFeature)
    
    mytemp=inFeature
    if num>1:#融合在一起
        mytemp="in_memory/gisoracle"
        arcpy.Dissolve_management(inFeature, mytemp,"", "", "MULTI_PART")
        
    desc = arcpy.Describe(mytemp)
    shapefieldname = desc.ShapeFieldName
    
    rows = arcpy.SearchCursor(mytemp)
   
    for row in rows:
        pgeometry=row.getValue(shapefieldname)
      
    if row:
        del row
    if rows:
        del rows
        
    return pgeometry
#到Pro中使用
def getLayerGeomtryPro(inFeature):
    desc = arcpy.Describe(inFeature)
    shapefieldname = desc.ShapeFieldName
    rows = arcpy.SearchCursor(inFeature)
    i=0
    for row in rows:
        if i<1:
            pgeometry=row.getValue(shapefieldname)
        else:
            pgeometry=pgeometry.union(row.getValue(shapefieldname))
            
        i=i+1
    if row:
        del row
    if rows:
        del rows
        
    return pgeometry

 

pgeometry=getLayerGeomtry(inFeature)
yl_tmp = arcpy.CreateUniqueName("yl_tmp") #临时数据
arcpy.Select_analysis(pgeometry, yl_tmp, '')