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发表于 2013-5-15 18:03:34
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用FlowControl( A- w( [" ~& A6 {" F9 d# `
2 x5 v/ ~2 M0 z3 ?' p5 J
大概是这样控制的:5 N1 {+ _: H9 Z- F2 [6 \
" a/ _8 |6 |# M% i' I3 `$ s* m! Iif SP1.empty then! y2 x. |- E! o; N* ^' D# O" S
r:=1;* r, t. V" l r6 J
elseif SP2.empty then: f: g" P7 ^/ X
r:=2;1 x' S8 g& w$ Y# D- @. m7 F2 r
elseif SP3.empty then6 ]3 s6 e- G! G ^
r:=3;, Q, a! G6 j1 t# ?
else* ?3 h, T" x% `, a9 D
r:=default_output;
* a& V6 J& x$ a9 qend;
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& H- q% b1 S7 d& `2 {. @return r; |
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