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发表于 2012-11-13 08:48:12
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1判断语句
; @- o* b3 ]- a5 _% | if <condition> then
4 \3 F' {$ s& }. I6 E. r <statement sequence1>;: `4 e9 F4 {! N! ^* b& t
elseif <condition> then+ @- X# {: W5 _6 `$ Y1 J: m- |
<statement sequence2>;- A1 G6 X" H5 I+ z; Y# T
else
, b' T6 G' Z+ B! Q U <statement sequence3>;- p. P4 z! z- ~* v( _1 D5 s& f
end;
& }2 ^4 R( f; h7 O如果分支比较多，用：
# s( I' n, y1 n, P* n inspect <expression>% i5 o) W* f i& v! h
when <constant_list> then# m, r( w% l: K/ F3 v
<statement sequence1>;; u! `) y# a# z7 D4 t- b2 B. S
when <constant_list> then; k2 G' \* `4 {! z5 w6 o% N
<statement sequence2>;
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else* F1 b$ o- q! V/ J* G. n/ R' t2 N
<statement sequence3>;
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, d; _' K; u) k+ V2循环语句( D" W* I, b! ~8 a; _
(1) from <statement sequence1>2 Z* | }1 p1 G( X! E
until <condition> loop% W' A+ j0 F% S; N- f4 l
<statement sequence2>;
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(2) while <condition> loop8 A' U3 H0 I3 S9 r$ A
<statement sequence1>;! U9 ]$ ] L( ?0 d
end;
# C% Z" [' ^! f/ w+ l (3) repeat 8 p' v& U' U/ f [- e5 ?
<statement sequence1>;4 i3 s' b$ G, O* Z
until <condition>;
3 V2 M# ]- Z6 w) E, S4 e0 d (4) for <condition> to <condition> loop* M; [* g P6 b# B4 a! u
<statement sequence1>;
% I! Y% B8 o I$ v+ A8 I% n next;
* D& P+ ` y6 ~% P4 p, ?4 F% f3中断语句6 _$ g1 V' |9 p) E. Z5 h
waituntil <condition> prio <integer expression>;" w/ ?5 c8 I$ g: X3 O
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9 B5 }* z0 T1 r( {) F+ T3 o ^" A以上为常用的函数！
9 p6 K+ k' Z7 M$ b3 K7 e; H还有很多，如有需要我把资料发到你邮箱里 9 v/ r, Q+ I \2 x/ A
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