import arcpy # 输入参数 input_features = arcpy.GetParameterAsText(0) # 连接要素 join_field = arcpy.GetParameterAsText(1) # 连接字段 target_feature = arcpy.GetParameterAsText(2) # 目标要素 target_field = arcpy.GetParameterAsText(3) # 目标字段 area_threshold = arcpy.GetParameterAsText(4) # 面积阈值 # 创建空间连接 arcpy.SpatialJoin_analysis(input_features, target_feature, "in_memory/spatial_join", "JOIN_ONE_TO_ONE", "KEEP_ALL", "", "INTERSECT") # 选择面积大于阈值的连接要素 arcpy.Select_analysis("in_memory/spatial_join", "in_memory/selected_features", "Shape_Area > " + area_threshold) # 统计相同连接字段值的面积总和 arcpy.Statistics_analysis("in_memory/selected_features", "in_memory/summarized_features", "Shape_Area SUM", join_field) # 创建字典，存储连接字段值和对应的面积总和 sum_dict = {} with arcpy.da.SearchCursor("in_memory/summarized_features", [join_field, "SUM_Shape_Area"]) as cursor: for row in cursor: sum_dict[row[0]] = row[1] # 更新目标要素中的字段值 with arcpy.da.UpdateCursor(target_feature, [target_field, join_field]) as cursor: for row in cursor: join_value = row[1] if join_value in sum_dict: area_sum = sum_dict[join_value] row[0] = str(area_sum) cursor.updateRow(row) # 导出结果 arcpy.CopyFeatures_management(target_feature, arcpy.GetParameterAsText(5))运行出现错误Traceback (most recent call last): File "D:\实验2\空间连接.py", line 13, in <module> File "c:\program files (x86)\arcgis\desktop10.2\arcpy\arcpy\analysis.py", line 84, in Select raise e ExecuteError: ERROR 000358: 无效的表达式 "Shape_Area" > 600 执行(Select)失败。 执行(fzzz)失败。请改正代码

出现错误的原因是在选择要素时，面积阈值的类型需要转换为float类型，而你传入的是字符串类型。可以修改代码如下：

area_threshold = float(arcpy.GetParameterAsText(4)) # 将字符串类型转换为float类型
# 创建空间连接
arcpy.SpatialJoin_analysis(input_features, target_feature, "in_memory/spatial_join", "JOIN_ONE_TO_ONE", "KEEP_ALL", "", "INTERSECT")
# 选择面积大于阈值的连接要素
arcpy.Select_analysis("in_memory/spatial_join", "in_memory/selected_features", "Shape_Area > " + str(area_threshold)) # 将阈值转换为字符串类型

这样就能解决该错误了。