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发表于 2012-11-13 08:48:12
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1判断语句* k* |7 L2 _- B# \! {, n L
if <condition> then
% r: y' a6 `% V9 ?/ P. u, f% J. | <statement sequence1>;( X9 A8 y+ P' j( `
elseif <condition> then
, }" g/ m+ ?4 B5 A4 i6 T$ G <statement sequence2>;6 p. `" j$ s2 O0 m8 P$ t* Z
else
3 _( @0 K2 [9 S" l) [* O2 F <statement sequence3>; `: q6 a* D, g, I6 ~- N8 A
end;$ j& p8 p. z/ l5 ^) D0 S
如果分支比较多，用：# [; N( r1 H0 R' E; [+ o
inspect <expression>8 c# _; P ?, T1 ]6 l
when <constant_list> then2 A' N! ^, E D0 q
<statement sequence1>;3 m4 U; p# }0 ]1 B% @
when <constant_list> then
% a' m( M7 c) [+ a& q4 | <statement sequence2>;; x( s6 T7 M8 K+ v9 O
...
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<statement sequence3>;
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2循环语句8 `8 M% d, [" D* t6 k
(1) from <statement sequence1>' M% U! K; m+ Z7 R- B* Q
until <condition> loop
; f: ]/ G: ^( v- w+ l0 R! F <statement sequence2>;
2 A& v8 Y& d8 y' }/ S$ ~& I end;
5 g1 t) O& `, A2 ?7 V (2) while <condition> loop
1 p" Q! r8 c9 n: _/ D <statement sequence1>;
# F5 W" _. B9 S3 s end;
9 d' F' F4 W) ^# u (3) repeat
: ]$ Y6 C" u z% c2 ~) w B! T- R4 o3 G <statement sequence1>;9 Q, ^. S0 J0 w* x" O6 l$ M! l
until <condition>;
( D+ u/ e% k- a: d, v% I (4) for <condition> to <condition> loop
- m. k; T4 q3 c$ I <statement sequence1>;
- {) q! C# d2 Z( `% X next;
~7 A6 |! T0 X' N3中断语句& |! `3 C" B; i. T
waituntil <condition> prio <integer expression>;
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, q( R: m9 C8 c; X) c以上为常用的函数！
3 l# W# Q+ ]+ h6 n' @还有很多，如有需要我把资料发到你邮箱里 ( |7 F* c3 e% F0 G
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