import arcpy # 定义空间连接函数 def spatial_join(input_features, target_features, overlap_threshold, output_features): # 创建空间连接对象 join_operation = "JOIN_ONE_TO_ONE" join_type = "KEEP_ALL" field_mapping = "" match_option = "INTERSECT" search_radius = "" distance_field_name = "" spatial_join = arcpy.SpatialJoin_analysis(input_features, target_features, output_features, join_operation, join_type, field_mapping, match_option, search_radius, distance_field_name) # 过滤结果 overlap_field = "SHAPE@AREA" with arcpy.da.UpdateCursor(spatial_join, overlap_field) as cursor: for row in cursor: if row[0] < overlap_threshold: cursor.deleteRow() del cursor # 设置工具箱参数 input_features = arcpy.GetParameterAsText(0) target_features = arcpy.GetParameterAsText(1) overlap_threshold = arcpy.GetParameterAsText(2) output_features = arcpy.GetParameterAsText(3) # 运行空间连接函数 spatial_join(input_features, target_features, overlap_threshold, output_features) # 完成工具箱输出 arcpy.SetParameterAsText(3, output_features)运行错误：Traceback (most recent call last): File "D:\实验2\空间连接.py", line 30, in <module> NameError: name 'input_features' is not defined 执行(kj)失败。请改正代码

这个错误是因为在函数中引用了未定义的变量。可以通过将函数中的参数传递到函数调用中来解决该错误。以下是修改后的代码：

import arcpy 

# 定义空间连接函数 
def spatial_join(input_features, target_features, overlap_threshold, output_features): 
    # 创建空间连接对象 
    join_operation = "JOIN_ONE_TO_ONE" 
    join_type = "KEEP_ALL" 
    field_mapping = "" 
    match_option = "INTERSECT" 
    search_radius = "" 
    distance_field_name = "" 
    spatial_join = arcpy.SpatialJoin_analysis(input_features, target_features, output_features, join_operation, join_type, field_mapping, match_option, search_radius, distance_field_name) 
    
    # 过滤结果 
    overlap_field = "SHAPE@AREA" 
    with arcpy.da.UpdateCursor(spatial_join, overlap_field) as cursor: 
        for row in cursor: 
            if row[0] < overlap_threshold: 
                cursor.deleteRow() 
    del cursor 

# 设置工具箱参数 
input_features = arcpy.GetParameterAsText(0) 
target_features = arcpy.GetParameterAsText(1) 
overlap_threshold = arcpy.GetParameterAsText(2) 
output_features = arcpy.GetParameterAsText(3) 

# 运行空间连接函数 
spatial_join(input_features, target_features, overlap_threshold, output_features) 

# 完成工具箱输出 
arcpy.SetParameterAsText(3, output_features)

注意，函数中的参数名称与工具箱参数的名称必须匹配。此外，应该在函数调用之前定义所有参数。