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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
2 w1 J2 X& x# p if <condition> then
- i" l+ v# _" r4 p <statement sequence1>;
* r* F% I% [& N! Y- | F& v$ l5 o elseif <condition> then% Y# j5 I: P3 S3 q9 [2 f9 ~" A
<statement sequence2>;4 [8 K, M+ S6 u
else E. K4 ]" ^0 Y0 G
<statement sequence3>;
7 G( c( N! T: f6 T" K2 B1 @" |! Y end;( M. J6 M" I5 u( A$ F% d1 ^ F8 V
如果分支比较多,用:
( A' r3 i" r) }# k4 U inspect <expression>
# y! G2 _* g7 ?3 I" f$ x when <constant_list> then
7 k* b5 x6 x) v4 s <statement sequence1>;+ U- R9 t& e+ e+ H; y8 s% k
when <constant_list> then; _. z$ W I a# K# l: B
<statement sequence2>;
. U1 }, X% e4 B ...
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<statement sequence3>;
+ f5 d# U1 A9 Tend;) G4 `; H% P5 {; I5 Z* A% z% P
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2循环语句
& i# B! l5 m( H& g% T (1) from <statement sequence1>! [% Z: k6 i0 R, {
until <condition> loop: _4 g; [/ I) M3 J
<statement sequence2>;5 x4 V2 }. ?4 u8 Q
end;8 O% J, e; w; D$ H: s
(2) while <condition> loop
4 @1 Z8 Z |& q! N <statement sequence1>; L" b: q) G/ | f* }. v! K
end;
; @" ?7 | E. M (3) repeat
; W9 a; j3 t* _8 q <statement sequence1>;2 g/ z6 l9 o @: z! n6 B
until <condition>;
, Y6 Q% r" g3 {' Y' N (4) for <condition> to <condition> loop" M/ e$ \ ?- r- R
<statement sequence1>;0 f, o U k7 L
next;
+ M- q O$ ^% z0 B4 W/ h! z3中断语句; s* _2 M1 [% Z$ N/ g3 L4 o
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
" R2 _/ o6 x/ a: L1 R8 {2 O/ k& \ ~还有很多,如有需要我把资料发到你邮箱里 1 a. m: W$ I$ W$ I# d
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