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发表于 2012-11-13 08:48:12
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1判断语句) X" a- Q& k' k( X1 U
if <condition> then
) _4 N3 B$ _4 V2 I4 Y7 q <statement sequence1>;
( G& Q, U' o3 d) u9 I/ Z elseif <condition> then
& v2 j/ n) M* B' a' H: v <statement sequence2>;
( j; D& J" v6 V else % g+ X. a) r4 \7 t) I* W4 _4 ]' m8 x
<statement sequence3>;
+ V- `6 W0 W4 W" ^- K' r+ q end;7 D9 [* m+ Z* r# z: V! i
如果分支比较多，用：9 g9 A$ g. Z# P/ B
inspect <expression>
; m" h/ k3 [6 ]0 j when <constant_list> then4 \' S- p7 [; z! E G- {- K8 g! X
<statement sequence1>;
3 n: G' X1 O* F( [& O4 K7 m8 u when <constant_list> then: J5 j: r0 A7 D+ N" w
<statement sequence2>;
1 p; }1 y& V3 s! N2 f; Z( X @ ...
* h; n6 K, c6 c& g; W9 i3 O! v& z7 L else
* W9 @& j) a5 @) C5 B+ G <statement sequence3>;
" Z/ t9 \" z9 u B) f2 wend;
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7 x0 y' g, ]5 T% |2 D5 d8 D2循环语句
, a0 a2 p$ b' V, B. o& ^ (1) from <statement sequence1>' l8 _$ E' t" M( @: m1 z
until <condition> loop
' Y U" E6 |4 \7 N7 l <statement sequence2>;
1 O, J0 D7 A- F( g% o end;
* I8 f2 r" G* i- y9 U (2) while <condition> loop* f5 f) u' w: W$ N
<statement sequence1>;
$ j4 B/ |1 S2 z. t end;9 k2 g+ J0 T% Z9 p: R9 B
(3) repeat 3 I7 `- J- W& g2 d7 ?
<statement sequence1>;8 ]( K& c; [: |3 n4 y2 Z' S! Q
until <condition>;
' V& p5 y1 b- C5 [ (4) for <condition> to <condition> loop' v& U: M: R0 o# @- S+ C
<statement sequence1>;
$ |0 B# W. W; e0 F$ ^! z$ W next;- s* d! r3 _0 Q/ q
3中断语句6 `4 M5 v& a( K! B! q/ Y1 H
waituntil <condition> prio <integer expression>;
/ D+ j& v5 F* Y, n4 A5 I a) |( F: Z5 @& j
/ w5 b F$ n* Y y以上为常用的函数！+ t0 G3 b8 G$ o. \1 k$ ?& x5 n0 `
还有很多，如有需要我把资料发到你邮箱里 , u" z' W7 `/ G* J5 n: [$ k6 P
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