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发表于 2012-11-13 08:48:12
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1判断语句1 }- n! y- _- U! G' O! Y) h0 a
if <condition> then
/ n8 P& n% J" t; A& X7 ~ B <statement sequence1>;7 X- |1 ?. r" F5 d8 v# K9 f: D
elseif <condition> then
* b# N4 Z' m# B( {& [) W! e, _1 p <statement sequence2>;
7 X7 O( w2 ?3 K: j) @+ r else 6 k J( D6 Y# |$ |
<statement sequence3>;- p9 \ p7 ]% [3 a
end;: p! T3 `$ N# Y9 K3 {9 U Q2 q+ R
如果分支比较多，用：1 M2 K! R: g$ V- j5 ~& T+ c
inspect <expression>' W" _+ O9 O2 t4 G9 d
when <constant_list> then
3 I& l( W3 R3 c1 H* t' u" T <statement sequence1>;
y+ a& r. a$ X# O: X ~ when <constant_list> then: w# F7 b Q) m& N+ R
<statement sequence2>;
" x7 T0 O1 C& N' w! J ...
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<statement sequence3>;
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2循环语句
$ U6 v J+ N/ k; C- S/ ? (1) from <statement sequence1>5 j9 F; g3 N1 e2 b+ D2 V: a
until <condition> loop
" T3 }0 Z8 t0 t! k <statement sequence2>;
# {+ Q. Q; U. p9 H' A6 q$ F4 S% p end;
' v; i; {) u" w) b (2) while <condition> loop
' a+ P% a5 H9 H, w. ^( x6 b5 ^ <statement sequence1>;6 w, \( l: K. B/ G* o7 V* q
end;
2 n) C) H2 G+ } D) d& U7 C. m (3) repeat ! T; }1 z$ I3 O/ W/ }# ^
<statement sequence1>;. E( s! ^; t( g8 Y. \* o' ^
until <condition>;; i+ P7 o8 h, |+ ~. a& e
(4) for <condition> to <condition> loop
: g+ n+ M; c& v, h <statement sequence1>;$ k, Q+ Q+ ^; b- m% ^
next;
$ f1 J, ]9 m( F& p" T3中断语句
7 k! Z' ^9 r9 e; F$ W: l+ Q waituntil <condition> prio <integer expression>;
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以上为常用的函数！
9 M8 f' @) _& _: @/ K还有很多，如有需要我把资料发到你邮箱里
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