# Import arcpy moduleimport arcpy# Define the input feature class or tablefc = arcpy.GetParameterAsText(0)# Get a list of all fields in the input feature class or tablefields = arcpy.ListFields(fc)# Loop through each field and delete itfor field in fields: arcpy.DeleteField_management(fc, field.name)# Print a message to indicate that the fields have been deletedarcpy.AddMessage("All fields have been deleted from " + fc)运行出错：Traceback (most recent call last): File "D:\多对一空间连接\删除所有字段.py", line 12, in <module> File "c:\program files (x86)\arcgis\desktop10.2\arcpy\arcpy\management.py", line 3479, in DeleteField raise e ExecuteError: 执行失败。参数无效。 ERROR 001334: 无法删除必需字段 OBJECTID 执行(DeleteField)失败。请改正代码

这个错误是因为你试图删除必需字段 "OBJECTID"，这是每个要素类的默认字段，无法删除。如果你想删除除了 "OBJECTID" 以外的所有字段，可以在删除之前添加一个条件来排除这个字段。修改你的代码如下：

# Import arcpy module
import arcpy

# Define the input feature class or table
fc = arcpy.GetParameterAsText(0)

# Get a list of all fields in the input feature class or table
fields = arcpy.ListFields(fc)

# Loop through each field and delete it (except for OBJECTID)
for field in fields:
    if field.name != "OBJECTID":
        arcpy.DeleteField_management(fc, field.name)

# Print a message to indicate that the fields have been deleted
arcpy.AddMessage("All fields (except for OBJECTID) have been deleted from " + fc)

这个修改后的代码应该可以正常运行，并且不会删除必需字段 "OBJECTID"。