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发表于 2012-11-13 08:48:12
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1判断语句
U" c2 q f) M7 d/ \9 a6 [5 q if <condition> then
. [$ @) I4 j7 l! ] <statement sequence1>;0 z( R- k, e% k' }6 L$ F8 o
elseif <condition> then4 ~2 C5 |# W3 `8 u; \% D
<statement sequence2>;
1 r" `8 {* ~' H G8 b. } else
( {" f9 U' p- ~7 p* A+ R <statement sequence3>;
. b# ~0 h# C Z0 c. U end; c$ a& a5 a. K( s: \: @
如果分支比较多，用：
8 H* }4 v e/ {% r inspect <expression>6 E, f# P" u! X- |0 ]
when <constant_list> then9 ^& x8 I% U" m
<statement sequence1>;
; h1 ]& ~; h6 ^! G; |- A6 L when <constant_list> then
q& F2 ] v, F; z; M9 v# o <statement sequence2>;% l+ V' J* L: _/ t
...& ^! _2 m/ p0 ]1 R6 k: K
else
- c8 B5 V. Q7 X: p <statement sequence3>;: y! p$ j- k9 O7 ^/ i. M1 g( m
end;
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7 @4 o/ Q6 K' d, s3 D' Q2循环语句
3 Y: `( k% ^+ Z (1) from <statement sequence1>
1 k, b2 }0 e" J' T1 T$ W: J; s4 I until <condition> loop
8 U8 p: T4 m' i1 p <statement sequence2>;
6 W: x1 E2 m/ l1 j- @& J end;
% l/ g# Y0 u! [" T: {6 Y) M (2) while <condition> loop
" `5 l( X& i0 ^& `! Q <statement sequence1>;1 p7 ?7 y8 I) s" g2 k3 ?
end;2 A5 }! |* z( o' e
(3) repeat
6 Y4 _2 Q0 ]$ u- d" ~. S D <statement sequence1>;. R8 n7 D/ @* ?+ ]" U" K8 o
until <condition>;( F8 Y8 Z+ K% y8 |
(4) for <condition> to <condition> loop
; [4 `/ C) d! l' h0 R" n <statement sequence1>;' R/ R+ ]; K4 e, P, p, X$ c- \1 ?
next;
/ k& b' S w7 g9 b5 L3 t3中断语句
" U/ D; g) B' d( m% P+ o- A1 m waituntil <condition> prio <integer expression>;8 V1 c5 m9 B" N2 ~
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以上为常用的函数！
{! K3 T! \2 q- \. U/ r. y8 ~还有很多，如有需要我把资料发到你邮箱里
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