|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
8 S) [( k* l4 y' f! |1 S: l if <condition> then
: l4 |) {9 g8 L3 u+ o! J( a+ l <statement sequence1>;' c6 I. Z* n1 K
elseif <condition> then
: v# t" w# p7 b% ^" o <statement sequence2>;
; f( `, P0 P: b1 B else
/ q! g) A; x# U' Q <statement sequence3>;) e# x; e3 Q d- r3 \8 R2 ?
end;
4 _; }3 O7 ?* Y/ C# l如果分支比较多,用:
/ O& _- @$ ?9 j3 K; z inspect <expression>
# T0 T3 n8 e$ O) c. Q8 }9 A when <constant_list> then
, O6 O! W* A) O' k8 P <statement sequence1>;
6 Y2 d3 V5 t8 ^8 D' b0 m. t9 ^ when <constant_list> then
+ Z* x5 R( ^3 R <statement sequence2>;+ Z( U2 J5 W3 Y( x
...
4 a9 v9 C8 b) C, [8 o else
& Q4 e' x8 F- B% w <statement sequence3>;
% H1 \1 x$ E8 E2 }0 U$ P& I( Y5 Jend;! S+ r, ]- ^8 A) I U- d6 t
3 C: P- E* l9 J& G+ F6 J1 A! u
2循环语句
/ \- O3 h U# L8 t# K (1) from <statement sequence1>
9 O8 x5 }& D' d$ ?5 ? until <condition> loop
2 ^$ D6 F% X, i# I9 M+ k% l <statement sequence2>;
- Z8 v# g# t3 F+ o) z end;' z0 ^8 t y" {8 i4 R! n: p; R! i5 y
(2) while <condition> loop% N6 @5 l, i2 G0 ]6 D6 S7 _
<statement sequence1>;
# @" G5 `) x. l: e: T7 O+ i end;3 y) q/ J& V/ Z, k
(3) repeat - _% w1 _( r( D! ~( }! X
<statement sequence1>;
) y1 a: |2 q6 a/ K/ c V* V until <condition>;
2 R* i J- m8 J! w' J& i8 c (4) for <condition> to <condition> loop; O2 s$ Q' w+ H( e
<statement sequence1>;
9 g- M) l1 g! q9 F8 e next;6 o4 @. [$ d2 H+ i# j
3中断语句/ d* {6 n/ J( { e9 }
waituntil <condition> prio <integer expression>;
6 t) G( ?* k! F7 {; J' O
) r6 c3 f$ H' U* q T0 {/ i* q0 } \2 k" l
以上为常用的函数!
: }2 \+ ~0 r! H5 V* P# m0 l还有很多,如有需要我把资料发到你邮箱里 $ E9 r- V1 T4 K, s
8 c& }! a& I4 c7 y1 A1 F
4 T" g8 h r8 T+ _; P# j6 Q, L/ H) @
1 [& A6 M' J' [; Q+ T1 ~' z5 g
6 W% k/ o7 j" k/ j$ T- j! K
7 G i, {3 u8 |' @* I3 z# `( a6 i2 @* N, H& T' K3 Y8 b# f
# {; B n, ~- l) V! b" W6 S3 u! a) B; q. h6 _) U; h" Q+ ]
5 b$ v3 r* ^& |' I4 z. S6 ?
|
|