SetParameterAsText

描述

使用字符串值按索引来设置指定参数属性。此函数用于将值从脚本传递到脚本工具。如果您需要传递对象，例如 SpatialReference，请使用 SetParameter 函数。

语法

SetParameterAsText (index, text)

参数	说明	数据类型
index	参数列表中指定参数的索引位置。	Integer
text	将设置指定参数属性的字符串值。	String

代码示例

SetParameterAsText 示例

将字符串传递到指定工具参数。

import arcpy
# Get the feature class from the tool.
fc = arcpy.GetParameterAsText(0)
# Determine the shape type of the feature class.
describe = arcpy.Describe(fc)
# Set tool output parameters based on shape type.
if describe.shapeType == "Polygon":
    arcpy.AddMessage("Feature Type is polygon")
    arcpy.SetParameterAsText(1, "true")  # Is polygon
    arcpy.SetParameterAsText(2, "false") # Is not line
    arcpy.SetParameterAsText(3, "false") # Is not point
elif describe.shapeType == "Polyline":
    arcpy.AddMessage("Feature Type is polyline")
    arcpy.SetParameterAsText(1, "false") # Is not polygon
    arcpy.SetParameterAsText(2, "true")  # Is line
    arcpy.SetParameterAsText(3, "false") # Is not point
elif describe.shapeType == "Point":
    arcpy.AddMessage("Feature Type is point")
    arcpy.SetParameterAsText(1, "false") # Is not polygon
    arcpy.SetParameterAsText(2, "false") # Is not line
    arcpy.SetParameterAsText(3, "true")  # Is point
else:
    arcpy.AddMessage("Unknown feature type")
    arcpy.SetParameterAsText(1, "false") # Is not polygon
    arcpy.SetParameterAsText(2, "false") # Is not line
    arcpy.SetParameterAsText(3, "false") # Is not point