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发表于 2012-11-13 08:48:12
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1判断语句
$ L& d9 n) z7 d. j: O& N if <condition> then. m6 F9 A7 o$ P" h, v
<statement sequence1>;
* U4 @ {$ m5 U0 h/ P, r elseif <condition> then; D% i% c& D7 f" J+ [
<statement sequence2>;2 G7 H7 J6 K o1 y( B) _0 @
else
$ c: Q0 p- ?0 V1 r <statement sequence3>;, R, E% X: R; [- W
end;" C0 {+ E7 E( R: m
如果分支比较多，用：
9 t' Q( b: h; L2 ~" n inspect <expression>& f0 L8 s7 i" ]0 \1 ]
when <constant_list> then$ U% N8 }: L5 Y a6 R( o! z
<statement sequence1>;& Z6 g/ ?2 ^, Z6 m0 S
when <constant_list> then7 D+ }. i8 H4 z2 Y$ y
<statement sequence2>;
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else
7 J- O S j$ o( a) f" i5 ?! ~ <statement sequence3>;
s+ E" |3 e; B/ b; }. \# D O- nend;
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2循环语句% N, B# ~2 P7 t" v; N# I
(1) from <statement sequence1>
1 `6 ?7 L+ P! O' h0 N9 F until <condition> loop
! g9 f+ I9 F. w* x9 q( _8 M8 I <statement sequence2>;6 W: M. Z' V0 v, Z6 y* \6 m
end;1 N" n7 u8 k. f, e" I: p8 R
(2) while <condition> loop
' ^7 s# m% S7 k, d+ Z6 s <statement sequence1>;
[1 M1 b: j6 H end;
( X1 r* y" r4 y! w( w* k (3) repeat , U: G. |4 S2 G
<statement sequence1>;
) P+ q" s% n+ X5 ~8 v3 _5 ^ until <condition>;8 T' U# Z9 T+ }; H# j6 |0 A
(4) for <condition> to <condition> loop# X( t* ^# W/ Q7 u
<statement sequence1>;0 a4 s/ |7 T( u, `" q6 j
next;
1 F+ \5 j4 V1 F$ N3中断语句0 ]* U) x6 c# o
waituntil <condition> prio <integer expression>;" Q. M3 O& n* `' e% a( ^" u
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以上为常用的函数！" d* L. u4 [% L1 e1 ]0 N
还有很多，如有需要我把资料发到你邮箱里
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