class Tool(object): def init(self): """定义工具的名称""" self.label = "连接要素工具" self.description = "只连接重叠面积大于指定阈值的要素" self.canRunInBackground = False def getParameterInfo(self): """定义工具参数""" input1 = arcpy.Parameter( displayName="连接要素", name="input1", datatype="GPFeatureLayer", parameterType="Required", direction="Input" ) input2 = arcpy.Parameter( displayName="目标要素", name="input2", datatype="GPFeatureLayer", parameterType="Required", direction="Input" ) threshold = arcpy.Parameter( displayName="重叠面积阈值", name="threshold", datatype="GPLong", parameterType="Required", direction="Input" ) output = arcpy.Parameter( displayName="输出要素类", name="output", datatype="GPFeatureLayer", parameterType="Derived", direction="Output" ) params = [input1, input2, threshold, output] return params def execute(self, parameters, messages): """执行工具逻辑""" # 获取参数 input1 = parameters[0].valueAsText input2 = parameters[1].valueAsText threshold = parameters[2].valueAsText output = parameters[3].valueAsText # 创建空间连接层 arcpy.SpatialJoin_analysis(input1, input2, output, "JOIN_ONE_TO_MANY", "KEEP_ALL") # 提取重叠面积大于阈值的要素 expression = "Join_Count > 0 AND Join_Count*Shape_Area > " + threshold arcpy.MakeFeatureLayer_management(output, "lyr") arcpy.SelectLayerByAttribute_management("lyr", "NEW_SELECTION", expression) # 导出结果 arcpy.CopyFeatures_management("lyr", output)运行错误：SyntaxError: invalid syntax (空间连接.py, line 9) 执行(kj)失败。

这个错误是因为你的 `init` 方法和 `getParameterInfo` 方法中都缺少了必要的缩进。在 Python 中，缩进是非常重要的语法结构，你需要在这两个方法中增加缩进。下面是修改后的代码：

class Tool(object):
    def __init__(self):
        """定义工具的名称"""
        self.label = "连接要素工具"
        self.description = "只连接重叠面积大于指定阈值的要素"
        self.canRunInBackground = False

    def getParameterInfo(self):
        """定义工具参数"""
        input1 = arcpy.Parameter(
            displayName="连接要素",
            name="input1",
            datatype="GPFeatureLayer",
            parameterType="Required",
            direction="Input"
        )
        input2 = arcpy.Parameter(
            displayName="目标要素",
            name="input2",
            datatype="GPFeatureLayer",
            parameterType="Required",
            direction="Input"
        )
        threshold = arcpy.Parameter(
            displayName="重叠面积阈值",
            name="threshold",
            datatype="GPLong",
            parameterType="Required",
            direction="Input"
        )
        output = arcpy.Parameter(
            displayName="输出要素类",
            name="output",
            datatype="GPFeatureLayer",
            parameterType="Derived",
            direction="Output"
        )
        params = [input1, input2, threshold, output]
        return params

    def execute(self, parameters, messages):
        """执行工具逻辑"""
        # 获取参数
        input1 = parameters[0].valueAsText
        input2 = parameters[1].valueAsText
        threshold = parameters[2].valueAsText
        output = parameters[3].valueAsText

        # 创建空间连接层
        arcpy.SpatialJoin_analysis(input1, input2, output, "JOIN_ONE_TO_MANY", "KEEP_ALL")

        # 提取重叠面积大于阈值的要素
        expression = "Join_Count > 0 AND Join_Count*Shape_Area > " + threshold
        arcpy.MakeFeatureLayer_management(output, "lyr")
        arcpy.SelectLayerByAttribute_management("lyr", "NEW_SELECTION", expression)

        # 导出结果
        arcpy.CopyFeatures_management("lyr", output)

请注意，我在 `init` 和 `getParameterInfo` 方法中增加了缩进，使得它们的所有语句都在方法的代码块内。这样修改后，你再次运行代码应该就可以避免这个错误了。