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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
+ r! n+ R: w' e! m if <condition> then. b: g' d! ]3 e2 B' |
<statement sequence1>;9 {$ M$ X5 ~- t0 W7 |
elseif <condition> then
7 X; s6 x% @! t <statement sequence2>;9 |- |% g, }/ l2 a
else
& J4 w0 K+ B7 x: I1 M <statement sequence3>;
! h g& C+ W1 s$ G& u end;' ?" x u! J4 `! y0 q- ]- x* `% H+ w
如果分支比较多,用:. ]- _# J& }6 B8 ]. t9 l9 L _. \
inspect <expression># U" Y8 o0 i8 Z, I% j0 J$ x" M
when <constant_list> then
) S* }4 p6 _- J; y7 o1 U( e <statement sequence1>;
* s8 x0 A6 `0 [$ r. T3 z when <constant_list> then( J- M; q9 S6 \$ @! k) P2 ^
<statement sequence2>;
+ r5 ?$ d v* I, q/ q" ` ...
* q, i- J: O2 @0 |& h else
( E Z. B4 u+ O5 ^ <statement sequence3>;
+ f0 ^% W" J E9 zend;+ ?9 {- f. i& W
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2循环语句
+ G; @5 s0 C Z2 s- W! {5 b (1) from <statement sequence1>
+ |2 B& l% f3 { `9 u, o b until <condition> loop& J9 p7 G, G+ S& s8 @1 O
<statement sequence2>;
, i- n0 V- \9 i7 b7 x4 q% @5 o& C end;' u2 h" v& J* H- F& H
(2) while <condition> loop) H0 b# ~3 w9 R+ q" s1 q/ h
<statement sequence1>;+ Q% w" {8 r" `, a
end;2 F6 f$ w! y) R- S8 g" t7 c2 p% q
(3) repeat + R9 d# ~& T5 `, I
<statement sequence1>;) c' p+ ^& H; g; I" o" b& x
until <condition>;
9 s4 R! ]" g, \6 t0 Q' p- | F (4) for <condition> to <condition> loop. Z3 z+ ^2 ?% z2 ^: e; f6 M8 E. W
<statement sequence1>;) W: R; [) M7 s, w4 e! ^) Q
next;0 L$ |. H' z7 i' j7 \! e
3中断语句# h& h6 X1 s( k" J
waituntil <condition> prio <integer expression>;6 G/ ]% I! ^6 [; I- ~ }/ p5 q4 J
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以上为常用的函数!) _# n5 j9 e' H, Q8 q8 l
还有很多,如有需要我把资料发到你邮箱里
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