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发表于 2012-11-13 08:48:12
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1判断语句4 O# a- Z5 H1 \$ B6 i+ S' P% n
if <condition> then/ _4 ]/ l) H+ ^# ?7 W; q
<statement sequence1>;: j8 ?: G) z& n
elseif <condition> then
. I+ B0 Q( ?) _8 Z+ s <statement sequence2>;
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<statement sequence3>;
0 j4 _: O7 b9 D: @ end;
4 |+ [7 w/ Q. E$ S# F1 p如果分支比较多，用：
9 X# F) w* K. x3 c! Q) x inspect <expression>
! C* R3 F% o5 v% v5 I9 u1 Z* d when <constant_list> then
, M$ I1 u9 l4 b- @ <statement sequence1>;' k# J0 z5 {) P% E
when <constant_list> then7 d& z/ C+ v/ C) |% J, ~5 p" L: V
<statement sequence2>;
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else
2 e: L' t. D; x2 ^ <statement sequence3>;
5 ?, l: m+ Z0 i- N8 V0 J2 Xend;. @- v7 o/ h" W3 J3 y( ]7 L
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2循环语句; i! ?% ?7 b9 l
(1) from <statement sequence1>
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, r; H1 B: s8 q% @ e& r9 ~" d <statement sequence2>;) @* y! ^4 }; d8 p* Y. H: d/ y6 `+ b
end;
" |5 X* o* [# \" \0 ] (2) while <condition> loop+ k8 q( z! q0 {# k( u
<statement sequence1>;
% o3 E N" F& ?) |. K end;
) \" Y# t2 {" D6 [ (3) repeat
2 y- N3 E. b0 ^8 g( a w1 R4 n <statement sequence1>;
" ~2 Q- F# h* [* T until <condition>;
2 {; `* e5 K9 d: V7 m' r (4) for <condition> to <condition> loop
$ C) u7 o: h4 E9 X( f, z& g <statement sequence1>;
$ R( q4 d. o" L% C: U$ [ next;& P. ~% h1 r' B# ^; q! b/ j
3中断语句2 T% w) M5 Q; i" [
waituntil <condition> prio <integer expression>;$ q# i! F4 R2 b8 p
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0 p) m) b% d8 z) F5 H以上为常用的函数！
4 x' Z5 H6 u# f6 F# q% I" S: h还有很多，如有需要我把资料发到你邮箱里
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