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发表于 2012-11-13 08:48:12
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1判断语句$ o/ ^2 T" v% L; @1 f9 u0 [% Y
if <condition> then) j4 C+ o0 d* f4 }. T
<statement sequence1>;
7 G! W, m7 E; P- { elseif <condition> then
/ Q+ f7 _3 Z6 I6 ] <statement sequence2>;5 t9 I6 C, ~' f- {4 ~' s" Y
else % ?( k: | G3 o0 Z
<statement sequence3>;8 I `: T! h, o. x: z
end;' e3 m2 ~/ c7 K( V- H) W
如果分支比较多，用：
9 f$ D4 E) I- H1 P' E inspect <expression>, u( l; R8 b+ I% F, ~) O
when <constant_list> then' H) z% v1 t U; f0 m; ^: F# W
<statement sequence1>;
6 \ r5 n M H: j when <constant_list> then
" j+ o* a9 X) G* A1 U' x, J+ J/ ` <statement sequence2>;
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else6 M2 c, ^" a+ I" }- A8 ~- g% [
<statement sequence3>;( O+ F9 V0 G) F
end;
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H( p8 p2 |- ~! _2 q# j" A2循环语句 x1 e" x/ L8 ~, G, s
(1) from <statement sequence1>
1 s2 l% q p: Q9 ?5 B7 Y5 z5 R: @ until <condition> loop
; L, K/ T {2 x7 S: l( N <statement sequence2>;
8 ~9 t* ?) q, Z# q/ W* `9 {- B end;
0 d" V# Z' L$ {$ q (2) while <condition> loop1 ]1 T/ T, @8 O
<statement sequence1>;" j4 _% {0 L8 [3 C) L3 D
end;( g9 l6 z+ P d% K
(3) repeat 3 `# R+ F5 C" |+ d; W0 {
<statement sequence1>;$ `5 K" S' V! b
until <condition>;
3 y! Y7 W( ?% X6 n (4) for <condition> to <condition> loop
. M& c: q- U' q3 } <statement sequence1>;+ ^' E2 C( a7 m
next;# H/ B: s% k3 K2 T9 t, a' ~. A
3中断语句# y9 N- ?$ r% o! s, E6 m
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
( g3 O$ S) A$ T, K3 x; U: z- t6 ?- ?+ ?还有很多，如有需要我把资料发到你邮箱里 2 {$ ~5 a5 w: K3 R* G- A& c2 G
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