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发表于 2012-11-13 08:48:12
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1判断语句0 j: ], D6 X3 g0 M+ ?, d0 F
if <condition> then
8 `5 r3 l8 N X* a* y) d1 |* a; { <statement sequence1>;
7 [+ y1 y3 ^, R9 v: x' C# t elseif <condition> then
1 S L* d$ X4 i: v <statement sequence2>;
7 ~4 ?: z& k! g, [- k# F else
# j. u0 Y) c. |. f4 B/ x <statement sequence3>;* x8 u0 q$ `' W" x
end;# t4 q: G# K6 B' S* D
如果分支比较多,用:
) q8 N! Q8 w! l1 Y" a9 } inspect <expression>
/ P3 u$ J; D0 j* S5 b$ R/ w0 d when <constant_list> then; H) d: j! E, s: ~# ^+ ^" I1 x
<statement sequence1>;
( A& ^3 u) @. J* r2 v2 ^3 ]0 Y when <constant_list> then3 J0 |" e0 V' ?( ]3 g) D* w
<statement sequence2>;! K" c9 v# z. x: {1 P, M$ z" f
...
# W) l/ b$ l. Z1 J else
0 A8 z9 B( T& n+ p" d) c3 n/ ~8 V- { <statement sequence3>; ~) w( [; w |) h' u! r9 z2 z
end;) O, Z4 a8 E& ^( w9 M
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2循环语句! n# k+ x7 \2 |2 S
(1) from <statement sequence1>
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<statement sequence2>;
+ h! y. u% Q) g# Q* @ end;# D `% _- b) P0 z
(2) while <condition> loop
( @0 Y9 y0 ]- q) S. | <statement sequence1>;7 V8 W V+ J% x0 ?
end;
# h& q5 q3 g& J% z (3) repeat % t, w( [% S; I' o$ Z6 P
<statement sequence1>;
" [) Z' s& i$ C+ Z until <condition>;
$ W5 O y. c" w8 a4 ` (4) for <condition> to <condition> loop' ^$ f7 N& s3 k% | P7 ~
<statement sequence1>;' n8 t# {9 s9 T7 f- X$ }
next;
5 t, A. \" f, [1 u# B9 ?3中断语句
0 y* _9 A p' F" c waituntil <condition> prio <integer expression>;
! I; J+ {& F7 Y. h. }$ i
& ^: {- V& S+ K; Q! w
' \2 T$ }$ ]# W以上为常用的函数!
1 ?- o3 T% u5 u还有很多,如有需要我把资料发到你邮箱里
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