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发表于 2012-11-13 08:48:12
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1判断语句
) b! x2 n) q$ C& U, r if <condition> then
5 _4 Q& l+ m8 v! Z; |) W% h3 T' u <statement sequence1>;" O; b, d$ X* i
elseif <condition> then" P0 |7 e4 }# r4 W- q7 M/ I
<statement sequence2>;0 C0 s) _ M) A' ]1 F# Z
else
0 g n# r. v+ t <statement sequence3>;) X3 I9 p5 X/ H* r
end;5 t7 o- ?4 ~1 B0 y" p* k/ V9 [, R
如果分支比较多，用：
1 s; @' R0 Q: y) Q inspect <expression># d$ P8 h- @1 r4 G
when <constant_list> then: @( V7 w8 n. K* E
<statement sequence1>;
* k2 ~1 r, C( Y3 O6 a0 k when <constant_list> then
1 ~: v4 l% _* Z3 r1 o <statement sequence2>;7 M( p# H9 K1 ^# M/ j! m
...% d: f$ b! {6 P% v# P, F, z
else
% K! ^8 g( ?4 @5 Y3 |* A! w7 S" V <statement sequence3>;
. _6 ~% L7 k. {end;' B* c2 p2 @6 X6 _
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2循环语句6 H% n3 |7 O) ]: M. u5 [. Z5 J
(1) from <statement sequence1>" l# N0 y: E. b- S% W' P! Q
until <condition> loop
! M5 K& F. f, V z <statement sequence2>;
* R F- y% b e) D end;0 a5 K! n) C6 Z- _' r2 z. x
(2) while <condition> loop
9 P- D0 r. l$ u+ `9 k <statement sequence1>;$ W, U' K( [ S7 Z
end;
) D. C9 M: V, m6 `; D" t+ V (3) repeat
! k3 t6 I0 ~+ E <statement sequence1>;& ^- \5 @& T4 m3 q$ i( w' @
until <condition>;
5 t0 X$ n: y4 `! m (4) for <condition> to <condition> loop
/ N/ E- M; W( b$ u' N% h- b <statement sequence1>;
( J0 I1 t9 R6 f next;
: e1 B8 I9 R. j; n* d% X3中断语句
$ [0 S) y* ~1 j7 G C6 ` t waituntil <condition> prio <integer expression>;
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, O. U( [# g( A) \. W以上为常用的函数！
! `; P. w" E1 d1 S: o m还有很多，如有需要我把资料发到你邮箱里 * e; W8 n7 P& I6 p
Y% w+ X8 U# v: A' {3 e u/ S: u$ I; l4 j* T" u# h1 d) }
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