分号后面多一个非空白符，删掉就好了

%macro那行 最后一个分号有问题

Log文件里没有问题。可能你的中文系统的问题。

1    data old;
2    input _col0;
3    cards;

NOTE: The data set WORK.OLD has 7 observations and 1 variables.
NOTE: DATA statement used (Total process time):
      real time           0.56 seconds
      cpu time            0.01 seconds


11   ;run;

12   proc print data=old; title 'old'; run;
NOTE: Writing HTML Body file: sashtml.htm
NOTE: There were 7 observations read from the data set WORK.OLD.
NOTE: PROCEDURE PRINT used (Total process time):
      real time           1.65 seconds
      cpu time            0.39 seconds


13   %macro corrvar(oldvar,newvar,n,note);
14   data old_var&n;
15   set old(keep=&oldvar obs=10);
16   put "&note";
17   run;
18   %mend;
19   %corrvar(_col0,hello3,1,Nihao)

Nihao
Nihao
Nihao
Nihao
Nihao
Nihao
Nihao
NOTE: There were 7 observations read from the data set WORK.OLD.
NOTE: The data set WORK.OLD_VAR1 has 7 observations and 1 variables.
NOTE: DATA statement used (Total process time):
      real time           0.03 seconds
      cpu time            0.00 seconds



20   %macro corrva(oldvar,newvar,n,note);
21   data old_var&n;
22   set old(keep=&oldvar obs=10);
23   put "&note";
24   run;
25   %mend;
26   %corrva(_col0,hello3,1,Nihao)

Nihao
Nihao
Nihao
Nihao
Nihao
Nihao
Nihao
NOTE: There were 7 observations read from the data set WORK.OLD.
NOTE: The data set WORK.OLD_VAR1 has 7 observations and 1 variables.
NOTE: DATA statement used (Total process time):
      real time           0.00 seconds
      cpu time            0.00 seconds

分号有什么问题？

你使用的附件中的程序还是你自己又写的？