ListDatasets

摘要

Lists all of the datasets in a workspace. Search conditions can be specified for the dataset name and dataset type to limit the Python List that is returned.

讨论

必须先设置工作空间环境，之后才能使用多个列表函数，这些列表函数包括 ListDatasets、ListFeatureClasses、ListFiles、ListRasters、ListTables 和 ListWorkspaces。

语法

ListDatasets ({wild_card}, {feature_type})

参数	说明	数据类型
wild_card	通配符可限制返回的结果。如果未指定任何通配符，则会返回所有值。	String
feature_type	The feature type to limit the results returned by the wildcard argument. Valid dataset types are: Coverage —Only coverages. Feature —Coverage or geodatabase dataset, depending on the workspace. GeometricNetwork —Only geometric network datasets. Mosaic —Only mosaic datasets. Network —Only network datasets. ParcelFabric —Only parcel fabric datasets. Raster —Only raster datasets. RasterCatalog —Only raster catalog datasets. Schematic —Only schematic datasets. Terrain —Only terrain datasets. Tin —Only TIN datasets. Topology —Only topology datasets. All —All datasets in the workspace. This is the default value. (默认值为 All)	String

返回值

数据类型	说明
String	A list containing dataset names returned from the function, limited by the wildcard and feature type arguments.

代码示例

ListDatasets example

List Feature Dataset names that start with C.

import arcpy

arcpy.env.workspace = "C:/Data"
# Print to the Interactive window all the feature datasets in the workspace
#   that start with the letter C. 
#
datasetList = arcpy.ListDatasets("C*", "Feature")

for dataset in datasetList:
    print dataset