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发表于 2012-11-13 08:48:12
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1判断语句5 ~2 M5 e. n: r7 ]4 u
if <condition> then+ I- E3 ~5 k4 m* _
<statement sequence1>;* f: U! V) ^9 S" ]& G; T9 k
elseif <condition> then! J$ V& [9 d0 j! A( G
<statement sequence2>;, o! g" j3 b) Q, |
else
6 C6 c7 P% g! E' S' { <statement sequence3>;
* }9 u0 L8 x, }0 J, ?; N7 C end;
+ z; ^: ^: c! P如果分支比较多，用：$ k% j0 Y5 M7 S, S8 R! T5 |0 v
inspect <expression># j- k& t/ W6 a! z1 b7 M
when <constant_list> then0 h) E- t6 o2 }' x2 F, S
<statement sequence1>;
9 [; g+ K# r5 v when <constant_list> then
* X: W0 C6 f2 W V. V <statement sequence2>;
8 E/ | G4 B% x- y) l ...
& K" U; n W' r8 X else
* }1 m% Q0 M" M% y3 G5 O* O- m <statement sequence3>;
5 q, p) ?# D1 o2 q6 {9 zend;
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2循环语句6 F/ U1 c( j! \+ o+ N9 E8 b9 y
(1) from <statement sequence1>9 z2 }) ^3 I) U7 K
until <condition> loop3 p( C& p0 E! x) r) x7 z9 o
<statement sequence2>;
& C* Z9 ]# q! e end;
9 m7 _; Z T* \" w3 \ (2) while <condition> loop
+ Y% d$ M* w: ]4 l: e8 W <statement sequence1>;
& u( Z K3 h- s2 F9 X( p end;
" a4 M' I1 h# n4 J" E+ C& _4 f$ I (3) repeat
: Z$ _: u# a; E3 ^ <statement sequence1>;; o+ M+ W1 I" B& ~3 g$ c" B5 v- e. L
until <condition>;( b9 b9 N5 G* B3 G+ Z7 e5 |
(4) for <condition> to <condition> loop
: _! N) y( B) a3 z( q: B. o <statement sequence1>;) K% ~9 q0 y- Q& N3 N& |
next;
6 ]1 U2 @, H" K% X* _3中断语句
o. S! c, j9 S m* S" _* o9 \ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
0 X+ [1 t- |: S* e$ ]2 [2 ~还有很多，如有需要我把资料发到你邮箱里
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