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ListFeatureClasses

汇总

ListFeatureClasses 函数可返回当前工作空间中受名称、要素类型和（可选）要素数据集限制的要素类的列表。

讨论

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

语法

ListFeatureClasses({wild_card}, {feature_type}, {feature_dataset})

参数 说明 数据类型

wild_card

限制返回的结果。如果未指定某一值，则返回所有值。通配符不区分大小写。

符号

说明

示例

*

表示零个或多个字符。

Te* 可找到田纳西州和德克萨斯州。

*

feature_type

The feature type that will limit the results. Valid feature types are listed in the following table:

  • Annotation—Annotation feature classes

  • Arc—Arc (or polyline) feature classes

  • Dimension—Dimension feature classes

  • Edge—Edge feature classes

  • Junction—Junction feature classes

  • Label— Label feature classes

  • Line—Polyline (or arc) feature classes

  • Multipatch—Multipatch feature classes

  • Multipoint—Multipoint feature class

  • Node—Node feature classes

  • Point—Point feature classes

  • Polygon—Polygon feature classes

  • Polyline—Polyline (or arc) feature classes

  • Region—Region feature classes

  • Route—Route feature classes

  • Tic—Tic feature classes

  • All— All feature classes in the workspace. This is the default.

(默认值为 All)

String

feature_dataset

Limits the feature classes returned to the feature dataset, if specified. If blank, only stand-alone feature classes will be returned in the workspace.

String

返回值

数据类型 说明

String

该函数返回包含要素类名称的列表，该列表受可选的 wild_card 、 feature_type 和 feature_dataset 参数的限制。

代码示例

ListFeatureClasses 示例 1

将 shapefile 复制到地理数据库中。

import os
import arcpy

# Set the workspace for ListFeatureClasses
arcpy.env.workspace = "c:/base"

# Use the ListFeatureClasses function to return a list of
#  shapefiles.
featureclasses = arcpy.ListFeatureClasses()

# Copy shapefiles to a file geodatabase
for fc in featureclasses:
    arcpy.management.CopyFeatures(
        fc, os.path.join("c:/base/output.gdb",
                         os.path.splitext(fc)[0]))
ListFeatureClasses 示例 2

列出地理数据库中所有的要素类，包括要素数据集中的所有要素类。

import arcpy
import os

arcpy.env.workspace = "c:/base/gdb.gdb"

datasets = arcpy.ListDatasets(feature_type='feature')
datasets = [''] + datasets if datasets is not None else []

for ds in datasets:
    for fc in arcpy.ListFeatureClasses(feature_dataset=ds):
        path = os.path.join(arcpy.env.workspace, ds, fc)
        print(path)