|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
( z8 I# e, U) j2 \: J if <condition> then
8 y: S6 o* Y) ] <statement sequence1>;
) j6 I" w8 e; q0 H ? elseif <condition> then
! X; ^/ ?% t% L1 v* J; x <statement sequence2>;
; H- ?, `( I0 P) d" G# d- |/ Q else
6 ~7 q: y* t3 u7 o2 T4 y <statement sequence3>; @' w# O& H) c) l+ D, q
end;
& o" T, z9 B7 |$ I$ d如果分支比较多，用：
- L7 C7 T3 Q4 l inspect <expression>+ Z' a# ]8 {9 S) N. d3 T$ [4 A
when <constant_list> then) w/ Q, J M' r F, D
<statement sequence1>;
- E* F% k0 n% R# s when <constant_list> then2 ?3 J# B3 G$ f# y" ~
<statement sequence2>;0 y H: Z) ^$ k8 y1 Y
...
2 V9 f& @4 r6 H else
( H) `# {( e) o+ G5 Z" `2 Z$ h# h <statement sequence3>;# n) l( s& A) s3 e8 ?4 {4 Z8 a
end;/ n y; h) z& J# A
; _6 c7 M( e, E- |* F. k. A' s+ _
2循环语句0 z: w* O' y- W T
(1) from <statement sequence1>
. U/ W0 L% ]/ u q) {" A! ]. P until <condition> loop' h( k$ [8 f1 V! k! G2 F/ _- Z: G
<statement sequence2>;
# @' _3 ^2 M+ R7 J end;
& @$ z; e I2 w# x( [ (2) while <condition> loop
{5 Y5 i, \0 f! e0 G <statement sequence1>;
' A- `$ y1 r' y2 J5 _ end;
" g& ?) ^( S3 Z5 x+ O! L6 H! K% o- C (3) repeat ! _- L# }( m j* v. b1 F2 N
<statement sequence1>;/ f5 [2 F' a+ O* S- Y- W/ a0 a1 @
until <condition>;
- Z0 B' i$ z0 R! M( Q# e2 o; _ (4) for <condition> to <condition> loop
8 V! d& Z. f2 f5 z; m <statement sequence1>;* @; S, M/ }1 t5 m; Y
next;* n% D6 F8 m' A) Z8 f$ L! l, Z
3中断语句
/ C- R0 |1 q: A) p9 M waituntil <condition> prio <integer expression>;5 H' Q% w3 R+ X6 ~ o& m
/ w9 k1 B+ u2 B; b& ?/ u) f' b* [! l6 @( n0 y4 V
以上为常用的函数！- H$ [, y; J* g. O: ^& |
还有很多，如有需要我把资料发到你邮箱里
2 b1 x0 q$ M q2 Y" X9 b2 g6 X8 ?! U$ i* A
0 }) x& ?) i' Z9 x6 ~
D% h0 ^4 J/ { N 7 M- k, z, P8 j; T' T5 C2 t
, F' V6 `( F( s: ~! `6 [3 f+ Y& ^
' {6 H4 O- G8 F8 B1 J& b
; S# a+ W+ o: Y$ ]' q+ ~8 k
* q2 D) ?9 a' S/ K9 P. }, W3 a! }; s3 a: ]5 }4 C+ l. L- z$ O
! D. T" C0 z- o E
|
|
[复制链接]
