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发表于 2012-11-13 08:48:12
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1判断语句 ^8 O2 j: L7 r9 M V
if <condition> then
% Q7 b& @6 U$ f) s+ Q" f- y <statement sequence1>;
) |$ H$ ^0 J$ l# I- ` elseif <condition> then
2 z }) A; Q' } <statement sequence2>;
' S8 S( R' k$ O8 a8 l: H- N else
! B# j4 E3 O% C v. Q; J. q <statement sequence3>;
) N6 a9 N& N: ]# N, a end;
# W! L4 \! F0 r* U如果分支比较多，用：
( B$ n/ S( D0 _$ S3 G. q! [ inspect <expression>3 ]: V5 |# h# W) k5 m, O( L
when <constant_list> then
* s) `5 [6 E4 M! ~- s <statement sequence1>;5 a9 n) N4 I: n! c' E* N) |
when <constant_list> then
8 H( S: ^6 R2 S5 p: | <statement sequence2>;
|% W: s7 D( H. T6 ]# h ...
5 w% ]% s1 o; A" q5 @ else
" f1 A f" X3 C h <statement sequence3>;
" ?* s3 T3 v8 e, f# u! ]end;% s" J- X( K. W
. C# `+ D5 C/ r! A! q, P- V2循环语句
3 i! `8 v! B( x- X0 I0 U, o/ i (1) from <statement sequence1>+ C1 Y, ^7 O; ]$ i* B( z% M
until <condition> loop
7 t' ]4 |+ F( [ w <statement sequence2>;
; Y' z2 w% p8 H end;
9 n! t# @ g6 N: [9 F6 z Q (2) while <condition> loop) Z( a# a* B+ Z9 z8 S# W5 P
<statement sequence1>;' L, v& O/ M F" |/ v/ t
end;
" Q% J. ?# D" w (3) repeat 3 n: {0 M, ]6 x5 W: Y
<statement sequence1>;
$ f7 t, ?# s( I" z until <condition>;
$ N$ L% M) o- [7 Y1 P9 M, E (4) for <condition> to <condition> loop
0 P' `% L) R' p% H' O' Y3 f l3 A: E <statement sequence1>;
{' T/ N0 a8 |# j B, [ next;
2 e0 f; c% F8 k1 @0 Q' N9 E3中断语句
+ }9 Q6 f+ W; {, h% _% \ waituntil <condition> prio <integer expression>;2 F1 \1 S' C5 Z; E2 d( B
& y, Y/ I. Q# K7 ^- u- V1 t+ J/ y
2 e5 E) {. K1 _以上为常用的函数！
Q7 S L: d" G还有很多，如有需要我把资料发到你邮箱里 ' R1 _, b& q5 ^- D8 ^6 W
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