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发表于 2012-11-13 08:48:12
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1判断语句# _- t1 Z* J" d! e3 R: x
if <condition> then( |8 i/ @& V, x+ n6 j- j
<statement sequence1>;
! i4 s) V. A6 ~; }' M ~/ u" g elseif <condition> then
3 {2 }4 a: T5 G/ c. t <statement sequence2>;8 }% ^0 O; w: Q$ M( d2 L1 T& u
else 6 ^. F' C- q6 @. h5 [+ M
<statement sequence3>;
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如果分支比较多，用：( Z/ h& `" v% ?! t- \6 y
inspect <expression>
( R5 h" Q) @- C$ z' a) V9 a when <constant_list> then0 v' S; B( _8 s) E& `7 g* b
<statement sequence1>;9 L& u t7 w# R0 }9 m n4 T
when <constant_list> then
# L% A2 Z8 e; r1 X <statement sequence2>;) [6 }4 M5 l: a9 \) t
...
! c9 p' ]7 O6 ^) H7 T+ g) q; d! P else
3 G5 D- _- Z/ M* m. X' y <statement sequence3>;
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2循环语句. h" I4 y% s& B& b% b% s5 Y, H
(1) from <statement sequence1>
+ e; H7 y- t) R0 [; d) P8 | until <condition> loop ?5 b* g9 g: b9 G
<statement sequence2>;4 F- r+ w5 o' E ]* @4 ]- w' k
end;/ v$ O0 W6 J0 m1 ~- E. B( d
(2) while <condition> loop
- h0 _& G6 n1 }) A# X <statement sequence1>;7 r9 I! \; T9 {
end;* s( Q% w0 M, \ x
(3) repeat / p- C9 Q8 m7 Y6 f6 [
<statement sequence1>;
% { y# r+ H8 F) ` until <condition>;
* z0 i: ~3 @. ]- ]3 V# f! U) ? (4) for <condition> to <condition> loop. p" o- w+ F: P3 a% r2 R
<statement sequence1>;5 [/ m6 Z+ U$ H& o+ S2 O9 q+ p
next;
4 {. }7 N8 W/ @& l* ?3中断语句
. s0 P7 d( y' N6 K4 N) s+ I7 ` waituntil <condition> prio <integer expression>;
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2 A' x3 X0 A1 d* B$ l以上为常用的函数！- K4 D4 @" J6 C) x/ `5 c) T
还有很多，如有需要我把资料发到你邮箱里 % \$ ?- u9 Q, @& \( g
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