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发表于 2012-11-13 08:48:12
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1判断语句
* Y/ A* [) p5 d1 }/ a `1 Y$ ` if <condition> then5 C2 m" d# T7 W% w3 X6 _
<statement sequence1>;2 ~; X4 R( f+ Y
elseif <condition> then
# p( w( ~7 \/ o: g+ x <statement sequence2>;
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<statement sequence3>;
+ H% O% a) e% t; v+ R0 I+ I end;& k+ j5 y6 x9 J8 }( R
如果分支比较多，用：
" v/ x" W2 Z0 a, U inspect <expression>6 k" o- U! t4 q2 k: C. E f
when <constant_list> then
d$ j. x" |1 h <statement sequence1>;& h# d6 P2 u) z
when <constant_list> then
# r( n) p# }; U/ m* h& x7 ? H <statement sequence2>;
: m; B! g f- l ...
$ s& f$ o C1 I else, s" s; ^* C' `4 i. U2 s* i, ?; a
<statement sequence3>;
" v; k8 g0 p: q5 fend;
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2循环语句% A( h& J9 W( g! Y. o
(1) from <statement sequence1>
7 k, f# G2 d% n! @9 e8 U2 m3 ^/ V until <condition> loop6 r( I8 k8 ?& p
<statement sequence2>;
% q* \0 [7 j Y* g b0 |3 x end;* ^! J# ^# V" ]6 H9 T
(2) while <condition> loop g% q8 x! q1 O: x$ v
<statement sequence1>;
4 Y* R! i4 u$ l9 F: l" W end;) a7 z/ ?1 E6 P) N, p
(3) repeat & _$ c+ ]2 N& a) h6 B& j
<statement sequence1>;
# D, W; Z% v) ~7 W& H5 M until <condition>;2 ~$ N8 D6 Y$ Q/ G3 d5 v- E- q
(4) for <condition> to <condition> loop' b4 A$ \* h. Q* [9 D: z) Q
<statement sequence1>;
7 m$ E2 m/ U1 Z: p1 b next;" x8 m. u3 j: f
3中断语句! o ?5 L' g% c
waituntil <condition> prio <integer expression>;7 H* u$ }7 P$ p3 o3 x
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0 d; F8 C5 q( D& y! h! \% H以上为常用的函数！
6 S- ~7 H7 x1 X" w6 }8 h- R还有很多，如有需要我把资料发到你邮箱里
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