|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句+ @. @) |* y2 r& z- P
if <condition> then) x6 [, `7 Z% ?8 W( k, A/ h' l
<statement sequence1>;
" A9 V4 ]: b* ?. m elseif <condition> then
! ]' L+ P/ Y( ]2 [ <statement sequence2>;
! u5 p! _ O, w0 \! O else ' O3 J1 \- C# J7 w; w
<statement sequence3>;$ m% @- x) L7 k+ p0 J. ]
end;1 h7 |( M3 o9 F2 | B- O$ k1 X/ l! k
如果分支比较多，用：0 N6 e! i9 r/ G3 o0 k7 Z, U, f
inspect <expression>
7 ]: |! u# }& Q8 H" `& i5 O `2 [ when <constant_list> then# B. r7 u( Z, d4 V( L. B4 Y
<statement sequence1>;0 H! b& v( {1 s/ }* ]; n) o" `
when <constant_list> then! I2 Z1 s1 j& ]2 F
<statement sequence2>;
! j6 D! C7 L: j7 y# N ...
* ~- ^! D, B" w else
$ Y) ?) r# M8 K <statement sequence3>; c9 f0 e$ Y6 s
end;
* o; Y* [' s2 U, q( _- L
9 S% A- T$ L% ]" m) z! o! l; w: `2循环语句
$ F/ R$ O5 L M9 I6 u (1) from <statement sequence1>) z1 C7 W; p; m$ d6 _0 y4 S
until <condition> loop* u' a8 M6 ~" [. H8 H; p( W; f
<statement sequence2>;; w9 H; I' H6 t3 a
end; Q" |/ N9 R: e' }
(2) while <condition> loop, _6 ?% p& M" O
<statement sequence1>;3 Y: ]# Y9 R! G, v0 x5 a
end;
2 N; m3 }$ A/ f, I& r* A9 V (3) repeat
- N/ M& M) }1 u: x/ [$ X <statement sequence1>;
7 A4 L' C( ~. A* {4 `' a until <condition>;
2 b; P* |* ~5 W6 @' v (4) for <condition> to <condition> loop
: U( E6 P3 D/ P$ \/ Y! W <statement sequence1>;
5 J) Z4 j/ \8 o- _) d$ \8 l next;
$ v) T/ d) x4 j) J6 p3中断语句
" X) |+ j) r! o, ]1 h f waituntil <condition> prio <integer expression>;
" c$ F6 x# }2 Q2 s, R8 d! W
1 U3 [5 g7 |6 o5 c! { {" | L* Y9 f7 y( D/ M
以上为常用的函数！
, b2 l- C5 ^/ s8 l还有很多，如有需要我把资料发到你邮箱里 ; C% n( a' y; g, ?4 u. J1 o
1 p! `3 i0 a9 k1 A% g C
9 e. G( H) p$ z- g! M( i. K8 o
5 ?0 k7 F2 T% ^7 q/ Z( q# {+ g
1 ^4 C$ X/ \, Q, K( t7 z {: t1 p4 ?
- M6 x2 S8 Y9 i) _
1 h+ c& N4 G* N6 o# {6 Q1 T" s) s
; b- K; v2 a# w+ k
4 Y6 q. a% c! _; C4 _- {1 _ y
|
|
[复制链接]
