在下rename了20多个变量，在同时选中全部rename命令执行时候，出现了如下报错。
too many wildcards in newname
    You requested U159 be renamed WALK0.2.  There are more wildcards in new than in
    old.  Wildcards in old and new correspond one-to-one from left-to-right unless you
    specify explicit subscripts in new.  Anyway, rename ran out of wildcards in old
    when matching the wildcards in new.  Perhaps you just made a mistake or perhaps
    you forgot an explicit subscript in new.  Or perhaps you forgot to specify option
    addnumber, which allows you to specify an extra #, (#), (##), ...

但是，如果一条一条执行，执行到例如（rename X3 age）的时候，就会提示说X3不存在。这是，X3确实不在了，但是前面并没有对X3有任何操作呀。。。蒙了。。。求牛人解答！
谢谢！！