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发表于 2012-11-13 08:48:12
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1判断语句
4 |$ q0 Z% ^0 f) a1 U- o* K, i3 G if <condition> then% l" D8 n D0 H- l' q
<statement sequence1>;
! A& h, I" i8 w8 d6 R elseif <condition> then8 @! W9 N' d2 W1 Y5 ]
<statement sequence2>;
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<statement sequence3>;
1 S. r, D* l, D; \' Q8 L end;
0 `1 I1 ~, C9 l) C如果分支比较多，用： Q3 i9 E- y+ H+ v8 K' A
inspect <expression>
+ X) b- x8 K, i* o7 o6 D when <constant_list> then0 Z7 o* a a S
<statement sequence1>;
1 i* a- P" c6 h2 _. A when <constant_list> then3 v W& z) h; E! e4 e' G0 L
<statement sequence2>;
$ Y* R- F$ h% a" P- z. u/ U5 ]) A ...
: r, J B3 _/ O/ f0 f# g else
; _( z6 s5 n6 [1 S" e9 x' i <statement sequence3>;
1 t3 x j7 V* T) {* }end;) R' F4 d) u8 Z* I* x
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2循环语句* d5 n1 N" {/ u. g4 O
(1) from <statement sequence1>8 q. k* I! v. ]+ [# a
until <condition> loop: O- Q( n' Z' i; X* `
<statement sequence2>;9 b! ^* s; l# j! ^. A6 T6 u
end;
" F4 s$ P# ?1 A/ h (2) while <condition> loop* W! o, q" ?6 S3 J' \( S% R
<statement sequence1>;
9 m% L$ r) N2 e) l% M( _/ [ end;
- t- K4 i/ O6 W1 F7 ] (3) repeat
& n" E9 f& U% M$ Q! P" d' _ <statement sequence1>;
' s# a9 T7 ~6 f5 Q% ]3 V until <condition>;. n8 f- K5 f/ ^& o- Q; K9 A
(4) for <condition> to <condition> loop
) M" D2 E- H E' s3 y; r6 U, s; | <statement sequence1>;% ]* }+ j* Q: t
next;# R# j& Q4 Y* a f o
3中断语句2 Y) b9 ?0 s5 k; C
waituntil <condition> prio <integer expression>;; n4 Z- N% G' T; P' h% U/ _
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以上为常用的函数！
, s' O7 W1 r/ u* [- t4 F还有很多，如有需要我把资料发到你邮箱里
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