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发表于 2012-11-13 08:48:12
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1判断语句
: r- l& ]: R& N" |0 \+ W) C! o) O6 L if <condition> then# }% D% S2 v9 t
<statement sequence1>;
6 \" u: f7 t# x, f! [1 r. V elseif <condition> then/ f0 h; _# S0 q+ d
<statement sequence2>;7 j$ J. M& S: k. B7 D3 t
else
; S6 N1 Z) p7 J2 `: E- u" M <statement sequence3>;
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如果分支比较多，用：5 a/ U# O0 r3 N" A# x
inspect <expression>% U: H4 H. `9 w; X8 f$ _
when <constant_list> then* A( s0 s, U* ]6 ]5 p) f: b
<statement sequence1>;
5 W' {) z3 ~3 m5 u6 q when <constant_list> then
. [& c# [3 z9 G- t3 L9 G& x0 Y5 J( l* l <statement sequence2>;5 Z9 ^( m9 T8 o( d$ `4 {
...
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<statement sequence3>;
9 f+ v5 b: P2 \9 }, s& j4 Dend;
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8 O1 `5 c, p& w) T0 j) |2 A2循环语句% a4 z* w$ `7 p8 h% C& M
(1) from <statement sequence1>
* `7 p5 X$ b' q until <condition> loop
8 ~1 i' H) v+ Y7 N1 M <statement sequence2>;
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(2) while <condition> loop/ L+ B) {! _) s) T& l2 {
<statement sequence1>;
( ~, S0 }2 u( t) n end;
5 ?0 r9 ]5 W; n# b (3) repeat 5 M9 E1 A4 Y% b
<statement sequence1>;
9 D0 N9 ?, y5 }5 y& m until <condition>;" `% i$ A* w, S. @, ~3 u3 V8 n K
(4) for <condition> to <condition> loop8 m8 }. k, e* u& G3 U1 ^2 s# }: i
<statement sequence1>;
; A, q+ ]+ N7 P( g; ` next;
$ _# {/ D, j5 W1 O$ ^: I3中断语句' e& y2 G& L6 m9 G( P
waituntil <condition> prio <integer expression>;
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2 N$ K$ W1 ^$ ^3 Y* t. I8 B以上为常用的函数！ v% x* }' f8 q. {' S$ m
还有很多，如有需要我把资料发到你邮箱里
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