原帖由 yug55 于 2009-2-3 17:21 发表 4 r3 p# Q4 _' N- K5 Q1 D' M; D9 l做了一遍,错了好多啊
% b, h% Z8 Q& a b, ]# O, B* }2 K( R 6 v: ]0 |' W. T4 F+ W" w# o. P6 hDon't worry, just go back to read the book, then do it again until you don't make mistakes. ( ?7 l- @' E; l' h % D2 i4 c4 [1 b0 L# M[ 本帖最后由 annie66 于 2009-2-3 19:15 编辑 ]