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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
; l2 y3 P% y! ~, a if <condition> then8 M; s: j8 C* [( p0 Z
<statement sequence1>;" K5 b: F% G# \0 x+ D( g' f V
elseif <condition> then3 n5 z; ?! c- S( I! N; P
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:
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when <constant_list> then
: x0 Y2 m \1 a) m5 w6 P <statement sequence1>;
! P6 B# A% {) Z% G D when <constant_list> then, f \9 B9 K" r! ^/ J
<statement sequence2>;
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else% {. g( c4 i' I5 i
<statement sequence3>;
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2循环语句
- R# p) ]( s9 B" M& @. e4 t (1) from <statement sequence1>! ~( X5 ~, ]6 L1 O' u9 r
until <condition> loop9 x/ i2 \& p+ Y3 z
<statement sequence2>;. Z) O M* j" v( t
end;& A& U8 X$ O' h. S9 `" z
(2) while <condition> loop
5 C5 H! ]: v Z( F1 z4 X) | <statement sequence1>;( G) E2 k: E# k- w% M& C
end;
' U/ F8 s" p1 c! e# O (3) repeat
6 K2 {* ~* G# e <statement sequence1>;
( ^; Z' p" D( V& N3 d until <condition>;8 ]/ A" ?2 Q/ R F( ^# L
(4) for <condition> to <condition> loop
1 ~& ?% P# j% D* x <statement sequence1>;
; g" A( }1 z |3 \ next;+ I, M" k/ c' u- A" J* N7 O
3中断语句$ U6 } z3 R# r$ b( ?
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
4 x# e( r8 E" h% C$ y1 y3 k+ ]% Y: r还有很多,如有需要我把资料发到你邮箱里 + ], E7 l: s1 K* o7 @( `7 d) L
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