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发表于 2012-11-13 08:48:12
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1判断语句; k" w( s* ~+ L7 H
if <condition> then8 t5 q! Y+ {, N( w
<statement sequence1>;
! e0 F% i- h) G8 r Y- o elseif <condition> then; L/ y# n7 N) g( d2 k6 t. F2 r. k
<statement sequence2>;
/ R2 R) t8 h- N else " P, u) i# D' k( ^8 I5 _
<statement sequence3>;* O( Z( N! x4 q' N3 o
end;: Y5 k/ B4 s0 e$ l
如果分支比较多，用：% c& t$ k4 g9 b% j1 d& k1 q
inspect <expression>% m# l% d2 O% p8 D! G0 o% U8 K% {3 ]
when <constant_list> then
' F( X' t* R9 ]6 C- S% N <statement sequence1>;& @$ L( b5 ~+ O3 s
when <constant_list> then; x2 l# N H. j" v* J# e# O! k
<statement sequence2>;
! q; T: n' @2 x ...
& C# ?- k" a9 |; N else6 I. d& Z5 n: R# S g
<statement sequence3>;4 S- q7 M2 t' \1 D6 [
end;( w7 H2 u) k/ d7 I) k4 c4 _ e* U
1 J$ g- B' b2 j1 `( j2循环语句3 P' h) a2 @; G4 v' G
(1) from <statement sequence1>5 w5 @8 e# g# ]) V5 {+ k+ _0 {
until <condition> loop2 Z- B8 r$ {7 G2 p) J; [: U
<statement sequence2>;
L# Z5 p* x. ?9 _/ o3 H end;( ~) ~6 i1 @; O1 k
(2) while <condition> loop
3 N S0 E% \# h% w0 N) E <statement sequence1>;; |* `0 L/ s" C
end;
0 @( H: ^1 H" a2 {' b9 C' W (3) repeat 3 p* p# |4 S. C) @
<statement sequence1>;
7 n; w6 |( I7 Q. c+ I until <condition>;
5 W X2 ^, N' l' g (4) for <condition> to <condition> loop! _9 l, `2 @3 @
<statement sequence1>;3 R) ^) l0 X- s* V' m8 O
next;& W3 P z+ u* ], n. u+ z
3中断语句
3 c' P8 T) `* X6 ? waituntil <condition> prio <integer expression>;2 k; Z, w3 \: }: C$ F' q: P- a
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/ a% `) U( e1 @) x, F* A& i
以上为常用的函数！1 F( T$ H: z, Q7 o! c
还有很多，如有需要我把资料发到你邮箱里 ) P U) K: y0 k0 k8 l
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