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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
~$ L* J4 Z% _ P- u9 y8 U if <condition> then$ p# a- j6 i& U: ~8 s4 ]8 h. r: t
<statement sequence1>;
1 G7 {1 @+ u$ E& I3 j- T( p elseif <condition> then
9 `' E! Y- z$ z v5 m% M0 W <statement sequence2>;) e4 c6 w1 @8 a5 L0 w
else
. w, h! K1 N: F8 a+ e <statement sequence3>;
_9 u, e! q5 t8 h9 w end;- X! W' l6 t% g' h- a
如果分支比较多,用:
8 c O% e4 O! l d9 U4 ? inspect <expression>" y+ x% Q/ c; e3 E8 `" [4 b2 S4 C& n
when <constant_list> then
/ q1 q8 w% w4 {$ m3 }9 T <statement sequence1>;* x- [7 W O* r
when <constant_list> then
6 o/ t2 V4 s/ w/ R! C7 n! } <statement sequence2>;
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else# Y J+ Y# B! Q) F
<statement sequence3>;6 s z* o" S( {
end;
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2循环语句
, x; a4 c& [7 P% Z& G; y9 g0 \% ^ (1) from <statement sequence1>
) r2 U& R* e* w! h- i: q until <condition> loop
1 _2 Z' o! f0 a/ Z# ] <statement sequence2>;
Q' C( Z. S& n# K& N end;
( ~$ Z, k" o% p. w (2) while <condition> loop
6 ?9 x8 {9 L9 K+ @2 `; O u" Z <statement sequence1>;
9 o2 W! r' b N0 Z$ f3 H end;
7 g* T' Y$ \1 Y% A7 j) E. o, ^$ T (3) repeat
6 G% m# z; C! h% m6 E' } <statement sequence1>;
5 \$ ~6 C9 Q) ? until <condition>;4 g" p c% {% }
(4) for <condition> to <condition> loop
@! l* [0 v& }% E, U! ? <statement sequence1>;$ V; T% C6 D1 |
next;
$ x8 V# p; I/ X( v& p0 ?3中断语句1 B/ u8 W7 r Y9 h: f3 f) A1 K9 P
waituntil <condition> prio <integer expression>;( E3 ~# H8 E3 i; ~3 z+ r7 z5 e, Q
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以上为常用的函数!
9 N! Y' x0 A7 u# h/ n4 ?还有很多,如有需要我把资料发到你邮箱里
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