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发表于 2012-11-13 08:48:12
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1判断语句
, Z9 d' Y3 q" S/ D; c1 S! q8 b0 E if <condition> then
" ]. ~6 {% H9 n <statement sequence1>;
* `6 O f- y Z+ R) ?/ q elseif <condition> then
: ~8 w/ M* y: \, l, s; K <statement sequence2>;
- z6 z; J! E. j- m) I else 8 w+ a: i' B* J y
<statement sequence3>;
8 Q2 J( w. U0 N end;1 V4 Q) h1 Z; }! `
如果分支比较多，用：
7 q* [# W6 @, ?2 r( `0 F, e inspect <expression>
* U& s! }% H$ j: W when <constant_list> then
$ M7 ]! z" @" @9 A, x <statement sequence1>;# E0 M" A+ P5 m: B' _
when <constant_list> then9 v# R/ [& D& ^) H7 E
<statement sequence2>;
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else5 n2 K: c. f+ b* y! V5 [* F9 C+ c
<statement sequence3>;
8 n; h* W; a# l4 iend;
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1 p: q l @! p3 j1 L6 e+ D6 i7 S2循环语句! d) T7 _# S& I( i' P l" Z9 G4 H
(1) from <statement sequence1>
4 @$ b- n/ p6 l. F% v until <condition> loop
/ r M* a' q4 u" L( k9 O6 | <statement sequence2>;
4 a" D& U7 b5 z end;+ d# ?- N3 _) L- m$ h
(2) while <condition> loop1 n0 A& i) l* F3 R& S
<statement sequence1>;
" M8 d, u. |3 [$ B. F# A end;
. k2 m( m9 ]! G# a0 C* } (3) repeat _* E# G7 ^8 F
<statement sequence1>;+ D6 D' q( ?. U
until <condition>;8 v5 R9 h" r, K- f: ~
(4) for <condition> to <condition> loop$ |8 p! B1 l* j2 g7 V. T
<statement sequence1>;
" q7 S: _ Q2 i/ M3 W8 x next;
7 c& h) `( C5 Q6 e$ Y( Y# O0 T/ B- d1 R3中断语句
/ h' D7 F; q) x' C* ? waituntil <condition> prio <integer expression>;/ M$ y/ @; z9 ~, v2 Z; i& u2 @
1 [# ? ?4 c' {' B' t
: ?! p4 m$ R& y以上为常用的函数！, P7 G/ Q( c0 c5 R. b/ v# S
还有很多，如有需要我把资料发到你邮箱里
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