###### arcpy对栅格计算器进行计算
但是在运行时总会报错。找不到原因。报错：
Runtime error
Traceback (most recent call last):
File "", line 28, in
AttributeError: ResultObject: \u672a\u627e\u5230\u83b7\u53d6\u5c5e\u6027 save
原代码如下
import arcpy
from arcpy.sa import *
from arcpy import env
# 设置工作空间和输出文件夹
arcpy.env.workspace = r"F:/study/DataCopy"
output_folder = r"F:/study/DataCopy/data2/"
# 定义栅格计算器表达式
# 这里使用了字典，方便后面进行循环处理
expression_dict = {
"1991-1992": "10 * \"CLCD_v01_1991_albert_henan.tif\" + \"CLCD_v01_1992_albert_henan.tif\"",
"1991-1993": "100 * \"CLCD_v01_1991_albert_henan.tif\" + 10 * \"CLCD_v01_1992_albert_henan.tif\" + \"CLCD_v01_1993_albert_henan.tif\"",
"1991-1994": "1000 * \"CLCD_v01_1991_albert_henan.tif\" + 100 * \"CLCD_v01_1992_albert_henan.tif\" + 10 * \"CLCD_v01_1993_albert_henan.tif\" + \"CLCD_v01_1994_albert_henan.tif\"",
# "2000_2001": "10 * \"CLCD_v01_2000_albert_henan.tif\" + \"CLCD_v01_2001_albert_henan.tif\"",
# "2000_2002": "100 * \"CLCD_v01_2000_albert_henan.tif\" + 10 * \"CLCD_v01_2001_albert_henan.tif\" + \"CLCD_v01_2002_albert_henan.tif\"",
# "2000_2003": "1000 * \"CLCD_v01_2000_albert_henan.tif\" + 100 * \"CLCD_v01_2001_albert_henan.tif\" + 10 * \"CLCD_v01_2002_albert_henan.tif\" + \"CLCD_v01_2003_albert_henan.tif\"",
# "2000_2004": "10000 * \"CLCD_v01_2000_albert_henan.tif\" + 1000 * \"CLCD_v01_2001_albert_henan.tif\" + 100 * \"CLCD_v01_2002_albert_henan.tif\" + 10 * \"CLCD_v01_2003_albert_henan.tif\" + \"CLCD_v01_2004_albert_henan.tif\"",
# "2001_2002": "10 * \"CLCD_v01_2001_albert_henan.tif\" + \"CLCD_v01_2002_albert_henan.tif\"",
# "2001_2003": "100 * \"CLCD_v01_2001_albert_henan.tif\" + 10 * \"CLCD_v01_2002_albert_henan.tif\" + \"CLCD_v01_2003_albert_henan.tif\""
}
# 循环处理每个表达式，进行栅格计算并保存输出
for key, expression in expression_dict.items():
# 执行乘法和加法运算
result = arcpy.gp.RasterCalculator(expression)
# 生成输出文件名
output_name = key + ".tif"
# 拼接输出文件路径
output_path = output_folder + "\\" + output_name
# 保存结果到输出文件
result.save(output_path)
请指点
result.save(output_path)
改为：
arcpy.CopyRaster(result, output_path)
该错误提示说Result Object没有save属性，将保存结果的方法从result.save改为arcpy.CopyRaster()
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