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发表于 2012-11-13 08:48:12
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1判断语句
8 }5 r, }' `4 T/ s if <condition> then T( ?+ H( k, Q
<statement sequence1>;
, _. k& Z2 F+ \; K0 z7 V: G7 f7 U elseif <condition> then
. G2 M2 N) Y/ S; t4 R <statement sequence2>;
0 _, ]6 A- ^; p& i else
' W ^& Z* M4 v4 m2 ~ <statement sequence3>;8 B7 y7 g0 W8 v. \) x- D
end;
7 e/ Y8 t5 C+ {1 a* I& A& e: T如果分支比较多，用：
$ @7 L. k8 w, z; t) ~ inspect <expression>
4 ?# H6 |1 ]) R- V7 c; i$ r when <constant_list> then: O/ B j# S$ } {
<statement sequence1>;
: P6 O* b* ]% v1 F when <constant_list> then
' E! \ X" V Q% x, g <statement sequence2>;
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else. T$ e$ l9 r3 S; L* T8 V' x
<statement sequence3>;
8 o& t7 \0 c" }2 i3 Gend;; V+ P$ k4 v& v e7 k+ y2 N9 q
0 Q+ n" N# i& Y: t5 P1 s
2循环语句9 {, h+ C, P* A) z" @5 Z
(1) from <statement sequence1>3 ]( j+ ^# k: P) g
until <condition> loop
( G6 X- s. E& ^- L3 h <statement sequence2>;
) t9 Z% a, h" x. {2 k9 Y end;, M6 l7 f" }+ B0 F! _+ l6 J5 C* { v
(2) while <condition> loop r$ x* y# d ^
<statement sequence1>;
" I( r" B( a" a* E end;
- c) l7 V4 g) m' q& |: ^ (3) repeat 3 N4 _1 Z# ^+ D |+ ^+ F
<statement sequence1>;
+ ?+ T2 H, e8 Z( t6 ~6 @" Z* t until <condition>;& I% P6 o* l) m3 y6 T2 ?
(4) for <condition> to <condition> loop
. E. l; w% |& v# H( ^ <statement sequence1>;
1 L: _# ^- G a4 K F7 N' a next;* n) Q' R5 R& H+ u8 a
3中断语句% g1 H; A% n; j
waituntil <condition> prio <integer expression>;1 y! _9 _& O( L6 m2 ~
$ ]' b0 s a$ G' T& X
, b+ D6 }5 D+ {) F" F以上为常用的函数！
3 N$ c7 ]% P- x5 u) M8 k* u还有很多，如有需要我把资料发到你邮箱里 " P: \& e% |5 u
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