操作方法：在 ArcGIS Pro 中使用 Python ListFields() 计算要素类中的字段总数

摘要

In ArcGIS Pro, the Get Count geoprocessing tool is used to calculate the total number of rows in an attribute table. However, this tool does not calculate the total number of columns, which represents the total number of fields in a feature class.

Providing a method to calculate this is helpful when there is a large number of attributes in a feature class. This is achieved using the Python ListFields() function.

过程

Follow the workflow below to calculate the total number of fields in a feature class using the Python ListFields() function.

1. In ArcGIS Pro, on the Analysis tab, click the down arrow next to Python, and select Python window.

2. In the Python window, in the prompt section, enter the Python ListFields() function as shown below. Refer to ArcGIS Pro: ListFields for more information.

import arcpy
fields = arcpy.ListFields('Feature Class Name')
print(len(fields))

Note:
Do not remove the single quotation marks enclosing the feature class name.

In this example, the feature class is Asia.

3. Place the cursor at the end of the expression and press Enter twice on the keyboard. The image below shows the total number of fields for the Asia feature class is 8.