求助：请问下面的code问题在哪里？怎么改正？？
data data_&sysdate9.;
set report;
if buy_date=input((&sysdate9.),date9.);
run;

Log中的显示：
110  data data_&sysdate9.;
111  set report;
112  if buy_date=input((&sysdate9.),date9.);
NOTE: Line generated by the macro variable "SYSDATE9".
1    20JUN2009
       -------
       22
ERROR 22-322: Syntax error, expecting one of the following: !, !!, &, *, **, +, -, /, <, <=, <>, =,
              >, ><, >=, AND, EQ, GE, GT, IN, LE, LT, MAX, MIN, NE, NG, NL, NOTIN, OR, ^=, |, ||,
              ~=.

113  run;
NOTE: Numeric values have been converted to character values at the places given by: (Line):(Column).
      1:1
NOTE: The SAS System stopped processing this step because of errors.
WARNING: The data set WORK.DATA_20JUN2009 may be incomplete.  When this step was stopped there were 0
         observations and 9 variables.
NOTE: DATA statement used (Total process time):
      real time           0.01 seconds
      cpu time            0.01 seconds


[em49]感激不尽！！