楼主问题解决了吗

Syntax
VALIDVARNAME=V7 | V6 | UPCASE | ANY

Syntax Description

V7
(default) indicates that up to 32 mixed case alphanumeric characters are allowed. Names must begin with alphabetic characters or an underscore.
V6
is the same as when VALIDVARNAME=V7, except that variable names are uppercased and they may be only 8 bytes long, as in earlier versions of SAS.
CAUTION:
Transitional use only: VALIDVARNAME=V6 is intended for transitional use only. Use the V6 setting for applications that you need to use under both Version 6 and Version 7 of the SAS System.  [cautionend]
CAUTION:
May render some applications unusable: Using VALIDVARNAME=V6 may render some Version 7 and Version 8 macros or SAS/AF applications unusable.  [cautionend]
UPCASE
is the same as when VALIDVARNAME=V7, except that variable names are uppercased, as in earlier versions of SAS.
ANY
allows any characters to appear as valid SAS variable names. Symbols, such as "=" and "*", must be contained in a 'varname'n construct.
Restriction:        You can use variable names in this form only with the DATA step and the SQL procedure. This type of variable name may not be supported in all environments.
Restriction:        If you use any characters other than when VALIDVARNAME=V7, then you must express the variable name as a name literal.