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发表于 2012-11-13 08:48:12
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1判断语句: u" [' `, ]- K# Q5 V
if <condition> then% |. V( n$ u) p2 }; j, t0 r. c7 [) J
<statement sequence1>;
; q; x# |+ ]& L elseif <condition> then
, ]% W3 i. I5 u5 d <statement sequence2>;
- i/ q; k3 K5 j else % H% ~& A7 K1 r9 x- H4 j
<statement sequence3>;! J- o, S% L! s: }9 `! S3 \
end;
" X: s/ Q: ^1 w$ o! }如果分支比较多，用： `1 T6 Q& G# X/ Y
inspect <expression>
' O$ C% p6 f2 ~ when <constant_list> then
, f) }$ g0 Q' U; {1 Z. ? <statement sequence1>;
9 }, ~7 R" Y3 G1 | when <constant_list> then5 j* `/ o4 b( G4 l% d0 M3 X0 j
<statement sequence2>;# m( d$ `3 {3 W' j) c4 E
...
; B0 w1 h5 M# f7 K- P* {' h else
; ^ S$ z8 L( g% L <statement sequence3>;0 Y- Y8 ~* y" u* I- |4 l* ?
end;
8 c$ ~) H/ y5 ~+ E
5 Q1 K2 R6 M2 B3 x4 O! q# ^: N2循环语句
- n8 X, T$ a( N6 Y; ` ]6 ` (1) from <statement sequence1>* u% o; j9 N0 f1 L) k9 _# @
until <condition> loop
8 f8 l9 k* o" m <statement sequence2>;
; F! v! u j: q: D! k2 F end;
2 }4 l5 W# i! s, J5 Q% B5 Z2 J! } (2) while <condition> loop8 ]& ^1 ~% t: F
<statement sequence1>;- w: K( J S: ?( Y- _* R g4 X
end;/ D1 Q, i, {" v, x% F( h7 X
(3) repeat $ ^* f; f: L( P' r
<statement sequence1>;
; N1 @/ k T: Z until <condition>;! ^- D, r; A$ V8 C+ V. }4 j. F
(4) for <condition> to <condition> loop# S; o" E" }9 F/ I
<statement sequence1>;
0 G h3 _. x+ v next;
5 V. o( ~, b; |$ N3中断语句
8 L W% y! Y* E; k4 u: e, ] waituntil <condition> prio <integer expression>;' }1 m* ^+ s. Z/ d+ i5 ^$ X8 {
0 Y: x! O) R, C0 m
6 D" |8 }% K4 h& D* F# F @. X
以上为常用的函数！
6 \: F1 ?3 `9 U8 D( z还有很多，如有需要我把资料发到你邮箱里
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