出现问题
Traceback (most recent call last):
File "E:/JIAOBEN.py", line 12, in
outNDVI = arcpy.sa.Float(Raster(data1_B4) - Raster(data1_B3))/arcpy.sa.Float(Raster(data1_B4) + Raster(data1_B3))
RuntimeError: ERROR 000732: Input Raster: Dataset does not exist or is not supported