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发表于 2012-11-13 08:48:12
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1判断语句$ ?% G9 b' h3 a" E3 v2 O3 ~
if <condition> then
$ Y: ^5 O1 E8 i$ _) H V <statement sequence1>;
1 ]% i% Z# k5 Y) i) I4 o! {0 C elseif <condition> then
- X1 D5 _$ ]# @# B4 Y <statement sequence2>;5 g. h% R/ n: k8 }
else
: y4 {& B4 A. h% _* V+ ~ <statement sequence3>;: H. p7 p! X( B, U% @" r: w
end;
( p, j9 c( G) @' n如果分支比较多，用：
4 r4 N; f# L9 s. k( a$ {8 n: w inspect <expression>, m: W2 s( w' n
when <constant_list> then
3 Z. w* t& ?5 n2 ]& V <statement sequence1>;6 M& n/ P# @7 d$ _* X
when <constant_list> then- b4 P+ {5 E; _9 U8 y6 V. t/ R/ r
<statement sequence2>;0 ?' s# g7 t1 ?
...
8 y6 k1 d [5 W else
$ @0 X, x$ d) D. Q <statement sequence3>;* v% X0 v; E8 T4 U$ {
end;$ P+ O; G y7 h P+ b0 G5 U( A% k
( U0 m0 \9 _; X7 q2循环语句
+ q. _! y4 f9 m; ?+ b9 d) w0 ? (1) from <statement sequence1>' `" ^0 `) G' W4 b9 G% W
until <condition> loop8 u6 A; p# ~: T% J) t* z
<statement sequence2>;
, Z" a- u! E$ h( j; }" {# z5 a end;; @6 k. p* h- a. A
(2) while <condition> loop
4 n' r# [' Z" |+ j <statement sequence1>;
2 o! F' d& o1 E$ E3 H end;
3 K% [1 T L: K+ \# o' S (3) repeat 6 @$ D7 i) w9 N, W8 P' U- }; |3 X
<statement sequence1>;; x( {- e6 a0 L8 s
until <condition>;4 |& D% Z$ c6 p$ k2 n+ R
(4) for <condition> to <condition> loop
) C/ S4 O- E$ J1 M4 d& ` <statement sequence1>;
4 l8 I; [* C4 _3 c next;* [# d; N9 j4 `* f
3中断语句( s+ A! o. {6 I# u% K Z
waituntil <condition> prio <integer expression>;$ F6 r) e2 ]* k% Q+ V0 C" ? f) z
+ Q+ I1 h: U! X
/ x% p/ Y, \% ^9 S# s' @' z以上为常用的函数！
) m$ x! S9 l$ a0 T) D! v/ G& i还有很多，如有需要我把资料发到你邮箱里 3 R% s. T& y% o
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+ _, `* ?& d/ g4 B |
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