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发表于 2012-11-13 08:48:12
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1判断语句1 U% Y( O1 \- U' d- E) |3 H
if <condition> then
& a3 `% a6 g" Q <statement sequence1>;" y" d1 p/ A) O. u1 ]2 l
elseif <condition> then+ N$ G6 @6 ^4 m0 Y$ D, ?7 W1 l$ s
<statement sequence2>;& k* @% ?: m7 D5 |
else
: M, K p7 F& w; \/ N5 g, e0 R <statement sequence3>;5 j# q$ Q+ [7 F" {/ m6 R
end;
+ m1 J. a4 G6 Q# e3 C如果分支比较多，用：
: V' y$ s0 j- P b9 g7 e- o& ] inspect <expression>- ^. C2 @ n- m' w# R
when <constant_list> then; g u# s' D, c2 {
<statement sequence1>;
6 C$ P( I! R! z# U# g/ r when <constant_list> then% \( t- m% b+ n0 f2 i+ L0 Y2 u( ~
<statement sequence2>;4 n! [. N o0 O$ `' L9 l C# M, V
...! C, Z2 B& [+ i# y* t# E* P
else
/ a; l6 ~( ]+ O) x <statement sequence3>;! E, {4 r+ K3 M
end;9 q* ?; z' u; Y2 ~ ~3 o, E" `- l
4 j0 u1 M, A2 [; V/ {2循环语句
2 O8 Z# E2 q- i! C0 n g! c (1) from <statement sequence1>& L p+ i! n* u5 K
until <condition> loop, R$ L* G. c: Y/ x/ h1 }# t
<statement sequence2>;# i2 H7 Q& Q: \
end;
% ?0 ]3 l) z, V$ V (2) while <condition> loop l- ]7 X8 j1 c4 c/ Q7 n) l
<statement sequence1>;
5 r0 X$ v0 o7 e) ]" c, k* f end;) ]4 k* P8 M5 R0 o+ |) N& w
(3) repeat
6 q( a O$ O! f& N. U7 N <statement sequence1>;
$ Z+ U6 h' B1 c: X) ~# W7 j0 h until <condition>;) U' G+ u' |% c
(4) for <condition> to <condition> loop
) |8 G7 f, |9 w4 e <statement sequence1>;
, C) F) y* o V X next;
/ V4 }8 V+ F) j3中断语句% m6 J6 k9 b$ W' u% m6 h
waituntil <condition> prio <integer expression>;" J0 |" i) @7 d# K$ E$ w
8 v) X# Z2 o7 }/ s( ?: a
/ \: f- d3 d" F: q O: b$ |以上为常用的函数！% P& g% j7 K: I5 T
还有很多，如有需要我把资料发到你邮箱里 * T j" h) U. O2 T
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