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发表于 2012-11-13 08:48:12
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1判断语句
+ I! W0 B2 L" Y0 i if <condition> then( r- ?, b3 m$ h" y
<statement sequence1>;6 G0 S6 }9 g: h" M3 i' w5 ~
elseif <condition> then
9 h: h7 Y( A% p5 o; F <statement sequence2>;
Y0 Y( A$ Z" S7 h+ b* U0 q else
$ f* z3 w% X& P6 { <statement sequence3>;8 ?6 c$ g2 T, o! T& { k8 z
end; W' a7 k d2 K* c; W
如果分支比较多，用：' v C; T% V. M+ O
inspect <expression>. k( X! Q, ^! A# Q/ ^* q
when <constant_list> then
9 ]+ E: I5 t8 B$ e; M# o <statement sequence1>;
( o2 U0 ?2 f: `; }4 K3 `- N when <constant_list> then& j1 V K T' G% k; R
<statement sequence2>;
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else* ~7 V) _6 B8 f0 Q6 i8 |5 _
<statement sequence3>;8 }& |9 C- N+ m' x: ?# S
end;( A; K' D i* W
3 W! r) L' V/ v1 J2循环语句
* z6 Y& W( _( K (1) from <statement sequence1>
: D# f; P6 O; v- \- a' W until <condition> loop# ^4 s+ E1 t) c2 d& a- U
<statement sequence2>;
5 X( Y3 Q* z: c7 q4 P; c end;7 i0 y; l! J' j: B
(2) while <condition> loop
8 R/ }( X. V. b. Q8 H5 ?& U <statement sequence1>;
5 `1 E; r6 t% }& v9 G- |& I end;
* b. n5 u6 e& M% P# W0 U; e8 h5 Q (3) repeat + w! z+ r; r$ h- Q, U& W. ?- S
<statement sequence1>;* x+ `/ p& U. l
until <condition>;
- L6 d4 W" s) ?+ X i* ` (4) for <condition> to <condition> loop
( q3 Z" _& n! P) g <statement sequence1>;" o1 l0 z* Q" V: q+ @7 l7 n
next;
% y% y3 L5 t: {. c! `3中断语句
' g$ W$ N% v$ h+ }: F1 G2 F2 O+ | waituntil <condition> prio <integer expression>;
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以上为常用的函数！
! K; W0 H' ~" J. I3 M还有很多，如有需要我把资料发到你邮箱里 $ r" m9 b+ V0 m) x0 ` x0 C+ t
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