之前论坛也有这个问题，其中一个回答：
dm 'log ;clear; output;clear;odsresult;clear';

多谢了

There is many ways you can reduce the size of log, lst file besides clear log; clear lst;.

You can consider
1) options nonotes;   --suppress some of sas notes
2) proc printto;    --- redirect them to a file

In some procedures you can add noprint option to suppress output to listing window.

Hope this helps.

Awesome! That is very helpful. Thanks a lot!