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发表于 2012-11-13 08:48:12
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1判断语句$ @# |: X4 d; ^4 k9 j
if <condition> then4 j! F8 B; M' b' Q% M7 g2 [; K n
<statement sequence1>;
$ J8 l4 E- O% ?/ y( J" z+ K1 y9 F) E elseif <condition> then) P( n( X9 P; T: J, d$ d4 D
<statement sequence2>;
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<statement sequence3>;! H/ n/ F3 d8 i
end;' @7 E: U# `5 b3 J' K
如果分支比较多，用：
5 h1 u: }5 G( _ inspect <expression>6 e9 W/ f$ S+ ?6 S
when <constant_list> then
' O: [- ]- Y: q; [$ I <statement sequence1>;8 Q! g2 j' p4 {* N2 s, R) _' S) B$ p
when <constant_list> then
8 x) p: i" R. W& b. y" J& D; y <statement sequence2>;
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else0 S& s6 T6 w# s$ I5 q& T
<statement sequence3>;
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$ r; h8 ^ \# c3 T5 P2循环语句
5 C+ O& n" f: V! j5 }+ ` (1) from <statement sequence1>
7 ?. P) E% _: } until <condition> loop
( H L$ @" D9 f7 u: E <statement sequence2>;
( x+ `, `( M, |, d, ` end;, G2 Y) `+ C; Z( T1 k
(2) while <condition> loop& S6 D! m/ C2 M3 p) }, N' r
<statement sequence1>;
, Y7 [: a5 w0 O! f% Z/ e: S/ \ end;
. V3 z( c1 w8 R3 L (3) repeat + S5 k1 @/ q& n+ h: M: X
<statement sequence1>;
3 V* L+ Y* S6 f: h0 m' q until <condition>;
8 h' n) E1 q" b. I( @! w (4) for <condition> to <condition> loop# i" L2 k. d V1 K0 E4 X n
<statement sequence1>;$ ~2 u) A" _8 R, P7 h
next;: O; ? W" B0 m1 {
3中断语句
5 V2 f$ W6 h# h/ t# _0 C2 n; g waituntil <condition> prio <integer expression>; g6 o8 ~5 o& s8 X+ z# O2 j
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以上为常用的函数！
. J& ^7 p# B8 z0 e- S% d还有很多，如有需要我把资料发到你邮箱里 $ C" u" t$ k" E& l, @' G
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