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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
# B0 _' W2 ^* D0 z. r if <condition> then+ \% g0 q3 ]# ?9 [8 F
<statement sequence1>;& m& t1 C* p6 Q" q* N% t; I
elseif <condition> then
- W* h2 {: H- `: ~" r <statement sequence2>;" \: j* e' ~, G+ |" Z& o
else ( R1 e! q1 h( D. A! [
<statement sequence3>;4 {: d; |$ H5 Y) D. m: v
end;8 x, k) L; `% p: e; D. j
如果分支比较多,用:! N! ?7 @7 H3 k% F! s
inspect <expression> z; \/ F4 M6 P4 r! |9 l
when <constant_list> then
4 y+ H8 k4 ~% W( v& |: S8 b/ E8 t <statement sequence1>;- O1 t/ f ]+ q; t/ L ~- ?: L2 ?
when <constant_list> then
+ `, B% F( m0 F7 O# Y, n8 s+ c <statement sequence2>;: w* o8 j) @9 z ^. j
...
; h5 o, l. m# n2 J j else8 }) E7 V$ ]8 c, e
<statement sequence3>;# [/ G; z R# F* F2 T% A8 K
end;6 ]; ]0 X( Y! E; ^
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2循环语句
3 O5 v( J5 a7 b' F5 P7 R (1) from <statement sequence1>
: q$ i/ t6 C; O1 g% ^ until <condition> loop: D3 c9 }$ l, i- c7 u. [+ ^- `
<statement sequence2>;
! K$ n: C& X, H& Z1 f' b3 p end;' A; ~5 D! R. ?. F! V- J0 Q
(2) while <condition> loop3 J6 S3 J" S: x* O9 x
<statement sequence1>;
# O- b8 X) m3 M: p& T+ \ end;
1 E+ K9 d& ^. }. o (3) repeat / _% H1 E+ ?; M6 t
<statement sequence1>;/ E( W2 M0 y. W. Q- I
until <condition>;4 u0 z$ Y6 k9 ^5 u; S8 C" r
(4) for <condition> to <condition> loop
* S" S$ J" a0 q/ ^5 q <statement sequence1>;5 q6 U7 D+ e2 H+ A
next;
6 T+ b8 v& [$ y" r6 `; J: V0 O3中断语句
3 n: K4 N1 V/ ?& O* B waituntil <condition> prio <integer expression>;
4 E$ F) G( r; k$ T' m% O) _8 i- q% y: }5 |3 R
5 K8 B" z& ~7 b6 a5 x' z7 l, }以上为常用的函数!; T9 R, f) W, |' R1 _
还有很多,如有需要我把资料发到你邮箱里 ?6 ~$ p) }, I( l
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