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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
& S! F7 m& O- Y# B3 U: c" ? if <condition> then1 d0 q# @: h) @2 J5 a7 ?
<statement sequence1>;
9 Z0 R" M/ `% q _0 l* t$ H) y% d elseif <condition> then
- i" g, @, A) [" [" D( `: T, h+ ] <statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:& `8 t" g$ I: l. F4 ?( e/ b- D
inspect <expression>0 H" `4 H* X! e
when <constant_list> then
& l: e5 L. I# c" W' G" L6 N <statement sequence1>;, E; f z" Z7 l3 J" u( E) d1 P u
when <constant_list> then
4 ^# J4 A; A# O8 e <statement sequence2>;
3 A ~7 d! \% y8 e) O ...
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. z7 D5 X$ S; \3 W$ R" o2 u0 x* e <statement sequence3>;5 H0 ~# e. _7 @) d. k
end;7 S1 i2 c' H7 m }0 `9 d6 E
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2循环语句) G" L+ W0 q i) |
(1) from <statement sequence1>
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<statement sequence2>;
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(2) while <condition> loop
; l$ C( z) o/ S& g- _- D <statement sequence1>;
$ W9 H7 E6 W' G( z* | end;8 z, ^. z, [. S0 L: w( P- v) P+ ?2 u
(3) repeat
* K, v! M- I [' ?# n: V% w% Q <statement sequence1>;" @% z0 V3 N) w4 g
until <condition>;) K3 y) X% i1 E! H
(4) for <condition> to <condition> loop J* S2 v# Q; {2 |
<statement sequence1>;2 w( S; R/ N G+ g2 S
next;5 d- G! k# q9 c) ~; g
3中断语句; k: x/ ^+ v& J
waituntil <condition> prio <integer expression>;! V) `: n5 m2 C, t* U9 g' Z4 i
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, p) v% @4 [/ p4 c1 f以上为常用的函数! t$ J* x9 [7 j. M
还有很多,如有需要我把资料发到你邮箱里
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