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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0 P2 ]( D( c' g, t0 Y% w0 D
if <condition> then
: W r. c& |( ]. w <statement sequence1>;
. U& u! i1 P7 ?5 W elseif <condition> then
* K( U8 _' X# k' j' x' F0 m2 { <statement sequence2>;
" [. C7 m' v2 ^: q4 C else
; h% f, h c ]! s1 w/ b2 ~* R <statement sequence3>;* }2 I5 S- D5 y. W( p! {/ D
end;
5 V: u" o6 _0 B2 G$ r! _, v6 T如果分支比较多,用:- l7 A4 k: U! i/ q/ l: ^
inspect <expression>
' R" L/ l6 ^' M+ V5 A% D when <constant_list> then
/ ?+ ?. V$ t' P. s8 O5 v" | <statement sequence1>;
4 p$ D+ S, H. q+ s+ u, p when <constant_list> then5 J, f# ]& J+ y0 e" Y, ?
<statement sequence2>;1 |; r4 p8 S$ Y D2 `
...
& |' n. h' c Q: N else% ^( G4 {! p* ?4 \1 U5 c$ B( j
<statement sequence3>;
0 s/ N, S; g+ }, {+ y2 N/ jend;
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2循环语句
- m/ L) p8 d( R/ x$ V6 ^4 c (1) from <statement sequence1>
: c( o: z+ P$ k' f3 p, B until <condition> loop5 @0 d, E, n) r0 `8 u3 P* W. M
<statement sequence2>;% X; @$ _, o, a+ I' W% a
end;
2 c! N8 A( l5 @4 K# l6 w# ]) K1 ]7 K (2) while <condition> loop
1 C) s5 I% M$ }1 i4 R5 ?- z2 ?4 P <statement sequence1>;' }% n: B7 \, G& y/ m
end;" I8 t% i6 X4 b
(3) repeat ( H* L! o) o% I4 s5 ]2 n0 z
<statement sequence1>;
V% v Q% V1 K9 w) s* ~ z3 n until <condition>;" x. m& a: J( t1 t/ j7 t
(4) for <condition> to <condition> loop
* Z) _3 a4 _6 d! t% p <statement sequence1>;% \; U4 y$ N9 |
next; m; J7 a, ~2 K! E
3中断语句, `) [+ A* F8 G9 A2 ~
waituntil <condition> prio <integer expression>;' L, f ]& b' c7 ^* M4 m* `' x" `
6 U4 ^. B8 N% N
7 G% Q* w9 q7 [1 W3 K( t+ W9 u: A, D以上为常用的函数! G3 ?! {( u5 D Q j; k+ @5 X
还有很多,如有需要我把资料发到你邮箱里
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