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发表于 2012-11-13 08:48:12
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1判断语句
5 X' E) s5 C3 h# T if <condition> then
8 {/ h: `. r- }5 X2 t. f, X <statement sequence1>;" G' M, t" b! o& u. ]; j& _
elseif <condition> then
8 M- T0 {, a+ U7 z$ l- {% V <statement sequence2>;
! K( u" `/ Q; S& H, X else $ i+ }7 ^3 X" D! ~4 s2 {
<statement sequence3>;% o' [; u; g% e8 j
end;4 W7 A3 m& A% G+ D7 \
如果分支比较多，用：! m- F/ H# k- Z6 \" L6 h
inspect <expression>% Y r" n c% c& b* M* a: y( ?
when <constant_list> then
; J1 e# d8 M. Z2 e" [ <statement sequence1>;
, n* P" k% G2 |' d) m( H when <constant_list> then
@3 X! f# k2 G4 ~ <statement sequence2>;$ k! F/ M, ]/ C" O' s1 B. _
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else
$ d2 Q4 u: J |' S <statement sequence3>;
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% j) y# }; ~: w Y# {2循环语句! A, f* D# w, g. }- \6 W, F
(1) from <statement sequence1>
, W) W8 z' T& p. v% a/ m8 F until <condition> loop
% p8 }9 O. J# n8 v, u/ D* T) c! u <statement sequence2>;
& w* F- X2 D; G" W( x: z end;
1 i" g) D( ]/ e% y& T. a (2) while <condition> loop s+ {6 m7 _2 l. j: n- X2 B8 H& W
<statement sequence1>;
B1 y! Y% O; P: k1 I: c7 s end;2 d7 Z- I* w% Q4 a' K r& Z8 }/ w: D
(3) repeat
3 D1 Z9 ?7 y) r# ] <statement sequence1>;7 T) f' r' I: h( I9 t2 k
until <condition>;7 @/ m' n! @& |5 T. H" R2 \
(4) for <condition> to <condition> loop" h: f! W/ ~/ S9 N
<statement sequence1>;; L% a1 j" v O+ Y3 c2 t! F
next;; P" I: n! |! h3 n" \, ^7 p3 v" |+ r
3中断语句' r0 o- d& @4 w
waituntil <condition> prio <integer expression>;
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; x3 E a5 L0 @2 n# V' u以上为常用的函数！4 w- @ Q8 u# P; o- c4 V8 i( J
还有很多，如有需要我把资料发到你邮箱里 ' w- D* g* J0 K, J Q$ F3 w
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