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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句, F% ~+ e4 ^/ B' Q
if <condition> then
( O w: A e: j <statement sequence1>;! ?% c0 Z$ |* U
elseif <condition> then2 o. C9 u' c3 M$ x$ `3 @
<statement sequence2>;' V1 ~, b+ x6 m% ^- A8 R
else ' o1 ?+ S+ H- o+ t- H9 i
<statement sequence3>;! a& f, Y7 H/ t {- B$ z
end;7 ?) L. p# x3 L+ Z
如果分支比较多,用:) U2 B5 u3 \8 I: b
inspect <expression>
1 H9 w( j5 @- r! @1 K) R5 a when <constant_list> then
' W8 N* R5 m$ U" W, l* o) K <statement sequence1>;! ^0 N3 L0 u$ f
when <constant_list> then4 {5 J! ~/ u0 k, v: C. ~3 e A
<statement sequence2>;4 p& @1 B& r+ V* k r
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else
; L2 f \; j5 @5 X; S1 b <statement sequence3>;
4 O X; b& W1 v% ]end;
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2循环语句
5 A1 x/ U" n+ N (1) from <statement sequence1>6 z9 M+ e0 O3 w, L* @; ]# p! H
until <condition> loop; k6 ~, T( I) o& T8 H; r
<statement sequence2>;
5 D1 r4 N4 Z4 |' u end;
; r& T5 J& k( e$ \+ ` (2) while <condition> loop
: I; U# O. }5 I: ?# E' P <statement sequence1>;# n4 n0 a6 Z; r0 E u4 N
end;4 t8 r2 v% Y% ~* p
(3) repeat ; [: \& _: E N% a' z
<statement sequence1>;
# K2 a' y1 I* _. u2 g% L, T4 q# G+ n until <condition>;3 B3 r4 l+ q: J! v$ U
(4) for <condition> to <condition> loop. s$ C: y' j/ _
<statement sequence1>;& q e1 \% P& _9 A/ t; e
next;
3 J8 X+ B' [3 ~$ u8 S3中断语句1 ^; ~! f: n, J q/ S4 S% ~# h( O; `
waituntil <condition> prio <integer expression>;
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2 _9 r( J2 e/ ^% k1 [以上为常用的函数!. j: z" c% j5 v- W, m: t3 X6 i
还有很多,如有需要我把资料发到你邮箱里
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