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发表于 2012-11-13 08:48:12
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1判断语句; K( |3 g, Q! F+ P
if <condition> then
' ^ @3 m) @, ^" k r/ c <statement sequence1>;
6 v# T$ _) w/ U; s/ l" t elseif <condition> then
6 d L. b6 W6 E <statement sequence2>;7 Q+ o9 `: W* k; Q0 z
else 4 v9 a& i) e1 `
<statement sequence3>;" W4 [- @, K" A
end;% e$ g6 D) `# M+ K
如果分支比较多,用:) D% H8 V; U& F. r/ V m$ h' [, T
inspect <expression>
+ G/ y6 {/ ]- Q( X/ H4 a; y4 R when <constant_list> then
" }) F! s: L/ f$ q. l <statement sequence1>;( M/ N6 v3 ~+ ~) ?, D- T# s2 R! P
when <constant_list> then
* S" i2 F4 e! e6 ~; G <statement sequence2>;3 y) k/ _/ u) y. @% [. N3 K
.... f4 P- V5 Q% k- a
else2 z$ R0 Z7 n$ R$ i& L; S; i
<statement sequence3>;
5 d; C7 h" v5 ?. z. |; L$ [" hend;
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* k. M6 O8 [, m2循环语句
+ u4 @! j8 s" k7 f9 S3 D9 k (1) from <statement sequence1>6 \' S3 p- R7 v- s# c( I: |
until <condition> loop3 J x) N) d$ v- ?
<statement sequence2>;) N# J1 v# ^. e' O$ A2 |
end;: V) v3 W+ \5 {. q& d8 K
(2) while <condition> loop; I* ?2 ]6 k o! u' t& W
<statement sequence1>;
; k! @* P0 [1 ]9 S end;1 R( V# Z. V* w& U
(3) repeat : N6 `; c- o1 g- P
<statement sequence1>;7 h9 z- a3 j( a3 P1 m- T! l8 y7 `
until <condition>;
- X/ m( R7 M7 S$ D; d8 _( C (4) for <condition> to <condition> loop
8 S, U4 r! Z1 O; R |, q" a/ n) | <statement sequence1>;
' V/ q6 W( ~% d next;4 i3 \, {2 z& t; P: X% N4 \ _% ]
3中断语句
% c$ h) o# R9 E" m2 w* i$ h waituntil <condition> prio <integer expression>;2 I0 b! E6 \; W: Z0 ^
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2 O+ C0 h* I/ j% N1 ]% z$ x1 L1 D! F以上为常用的函数!; B) M& c+ _. F+ Q2 U4 F' q6 a) N
还有很多,如有需要我把资料发到你邮箱里 " C& n( t& Q7 t# s
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