看来只能运行一下试试了

去掉pay一样可以得到结果。。

if you run the code, you suppose will see below warning in the log
WARNING: The variable pay in the DROP, KEEP, or RENAME list has never been referenced.

Basically DROP statement will remove the column from the output dataset, so I guess the right statement should be

DROP type score;

好的，谢谢您{:3_59:}