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发表于 2012-11-13 08:48:12
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1判断语句
* ^. n- h% S; {" F if <condition> then
c: i* V& f8 o8 k <statement sequence1>;6 ^0 m/ K D6 A
elseif <condition> then. ~' ^4 i$ ~( `2 y; t1 P
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:
( H% P# Z# T3 ]% @% p inspect <expression>
o5 ^4 }3 I8 F3 K/ y when <constant_list> then
. H* p6 }6 d. X; b8 @ <statement sequence1>;4 J+ d* g0 G3 V* N2 j- p
when <constant_list> then! K; k4 X4 x! a# q, a
<statement sequence2>;
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<statement sequence3>;
( k( Z0 X+ L1 jend;
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2循环语句+ E$ L0 E ?: O& \2 m) x
(1) from <statement sequence1>- l' `, L3 S; Y6 P0 Q/ j) @
until <condition> loop
( Z& K) V; K9 ~8 Q7 q } <statement sequence2>;# O' Q/ b4 } [2 D! ?0 n( _
end;
& a. e3 I! C9 d" o- n (2) while <condition> loop: s( M; ]; @' C3 Y, t' R
<statement sequence1>;: W6 ^9 ?4 u( W1 N. {3 U
end;
4 ]! N: F, E" q& k (3) repeat
+ J% V7 s$ q2 E <statement sequence1>;) u4 ~( {# }5 D, _% R5 B7 B7 U
until <condition>;) |' h. |) y9 x4 `- v
(4) for <condition> to <condition> loop$ ~( G0 w) v2 p! u0 X& t
<statement sequence1>;$ Z1 _- R4 j' w! j$ H9 ?9 k
next;
8 Q; x3 [2 A- G+ H" Y3中断语句( b8 Q# E, X" d- ]0 k" g5 k
waituntil <condition> prio <integer expression>;* G+ ^/ ~8 T$ j+ m9 [5 b* ^
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以上为常用的函数!
, S9 D) l# h, @* S0 V7 `还有很多,如有需要我把资料发到你邮箱里
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