也可以利用SCANTEXT
不过为什么不用textsize

SCANTEXT=YES | NO;
scans the length of text data for a data source column and uses the length of the longest string data that it finds as the SAS column width. However, if the maximum length that it finds is greater than what is specified in the TEXTSIZE= option, then the smaller value that is specified in TEXTSIZE= will be applied as the SAS variable width.

对于字符变量,如果指定了scantext=no,则使用textsize设定的长度,缺省是255;如果scantext=yes,则取scantext扫描值与textsize设定值的较小者.
数值变量都是8

说的太好了,就需要你这样的人才