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发表于 2012-11-13 08:48:12
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1判断语句7 |! w% c8 r; u# l
if <condition> then% f" P/ Q/ m9 L. a8 m! J4 U
<statement sequence1>;
* S, }: P7 l. g* ^- G. g+ I elseif <condition> then
3 e2 w3 r2 Q: ~/ `& o <statement sequence2>;
) b; S e2 S+ x else ) p& Y* H% d+ i1 {( Z3 s
<statement sequence3>;: C" }' ~! m& K2 g" Y% H2 K
end;. N L& O/ H8 j. [! P
如果分支比较多，用：
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when <constant_list> then
6 U8 ^, ~: z0 E' _7 {& o& T <statement sequence1>;
4 f; c! h* k: Y# z9 u( n" b when <constant_list> then
. }; u; N" x. _4 u <statement sequence2>;" P C6 d7 v3 b( H- P2 V3 f5 p
...
' x( H7 l2 D! C5 P% Z! v else
% S( N" V! } N. r, Y) I- j9 ? <statement sequence3>;
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' g, J8 I! V9 v6 ]8 L2循环语句1 q' a, j* A% ~
(1) from <statement sequence1>1 n1 A [9 F- _- K$ J0 ]
until <condition> loop
8 Y; ?+ ^# v) v$ R$ @* g" O <statement sequence2>;
! r! N* a5 M& I end;
$ u" Y% e4 j" N0 j8 Y, N (2) while <condition> loop
% X8 I. n, r. j- |6 ?1 i8 R <statement sequence1>;
2 r2 a# {3 W1 ?8 c X end;
5 T! N8 d8 E+ f3 A (3) repeat 3 l7 Y1 z# ?6 o
<statement sequence1>;
5 [8 ?7 t6 \9 Q until <condition>;* G8 |+ M1 g6 P. C; a6 F
(4) for <condition> to <condition> loop
# h& p! R, J: W9 o' r$ B <statement sequence1>;2 W0 J( h- ~, I! t7 S, A4 I
next;
0 l9 \: a0 @1 s3中断语句# L; e/ m2 l7 V7 I5 Q# J
waituntil <condition> prio <integer expression>;- p S' u$ f9 A/ e& x4 H1 `8 b2 c
# f) J: W( ]) r2 V' K
# {, \, @$ ^' ~7 n' ^以上为常用的函数！& _! e8 Y D" p) x
还有很多，如有需要我把资料发到你邮箱里
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