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发表于 2012-11-13 08:48:12
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1判断语句9 p! F% I7 p# [4 r3 F5 F/ ?
if <condition> then `& S4 @: F, Q! y+ Y" u0 }# l# ?
<statement sequence1>;% w+ L. U _# U+ V
elseif <condition> then, f& b9 E& ~' h3 O+ r3 l# ]
<statement sequence2>; u4 j" S" h" c) ?0 ^) [
else
4 z C- ]% W0 N0 E <statement sequence3>;* O4 M, P$ v: c T( t/ e+ K. g; R
end;
8 I; R7 E" X* [7 f" I如果分支比较多，用：
* ]* a& H* F. Y& e4 v inspect <expression>
C4 e# k" V7 s1 c# ^ v4 Z$ ] when <constant_list> then
' x7 d2 R" V/ D$ L5 n/ ? <statement sequence1>;
) n% B2 w; }3 m4 G2 q* _ when <constant_list> then, T7 ^& N1 g" K V8 @- f- e
<statement sequence2>;" p8 o4 M% O1 _" B/ i! d- Z1 y
...1 \1 z1 M+ A, K, U$ V5 H
else! a. Q: B& ^% O: `/ t' r
<statement sequence3>;
}- ~2 q* G/ X& bend;
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2循环语句- P- r0 h" l, D7 `9 _/ y) m, V
(1) from <statement sequence1>
8 n# T: F0 j* u! m! Z# c2 p8 t- M7 q until <condition> loop$ A2 [7 @8 q5 v# t: @; X) d# K
<statement sequence2>;5 d' l! D* b4 F& N& q/ A% y
end;
8 P7 j# w' F! H+ Q (2) while <condition> loop
! l; \% k7 c- ]4 I; M( O/ X <statement sequence1>;: a; W) Q& G* y# T; [5 j( m" F1 {
end;' l0 |, D3 |, P+ }6 V5 h
(3) repeat 2 T" R+ l' n+ w5 X* ^' l Y9 |
<statement sequence1>; z6 _( Y6 Z: r$ h L
until <condition>;+ @ u3 }! H0 W) e
(4) for <condition> to <condition> loop
% G8 L' q w: B; p& @8 n0 G6 | <statement sequence1>;& `' q5 t5 \; k9 A# S) e# a
next;' n f! V, _, P4 x$ w8 y& Q
3中断语句6 d6 V6 i% V# k4 N9 v. \8 D$ q
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
3 X; F8 G5 D3 T" f6 `8 D4 a还有很多，如有需要我把资料发到你邮箱里 * v1 _: e" Y5 ?9 F+ W9 y+ G% i
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