|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句! Q% M- x4 v$ R& M' P3 |
if <condition> then
1 z: u3 T& B" c% C5 b <statement sequence1>;4 C+ J+ P8 M9 A5 X" W$ d% J' G
elseif <condition> then# h- [ |$ ]/ m7 l: |
<statement sequence2>;0 j2 Y4 e0 N# r- u# [& h/ E
else
! J/ w; J3 O# {; u. N. {7 Y <statement sequence3>;
% r9 _5 j+ X7 Z8 ?4 y end;/ k( o: ~7 l) K" m
如果分支比较多，用：8 ^, k( f4 O, |9 `+ i( K
inspect <expression>! |4 F9 }6 s( K; i9 H
when <constant_list> then; ~/ J8 ^% P" L! G8 A
<statement sequence1>;4 ^% Z* r9 V1 K+ R% A9 E
when <constant_list> then; l) \; d) Z3 B1 e
<statement sequence2>;, C$ f' J5 z- g" t, q* f" a
...: m$ s3 N. E5 V. Y/ x' }8 _
else) k$ c# ~ M" S. v5 @# I+ K
<statement sequence3>;+ {% a& C' h2 s& }* i
end;
- _& b2 ~* j1 q' B1 y# ^% u u3 x6 ^' @: l1 @& | d
2循环语句) ?/ N. c. D7 H& }" r
(1) from <statement sequence1>
- c5 a/ G; A6 E: O until <condition> loop' e0 g9 {; i( m# }5 R
<statement sequence2>;! {- M+ W# [/ n/ G2 d
end;* f* I5 [) d1 j1 G4 G& G
(2) while <condition> loop4 V/ S$ v y* e
<statement sequence1>;
& P5 E0 L* _) ~2 o4 u end;) n* |, A$ O% z
(3) repeat # {( N% b- ?/ T; y% N
<statement sequence1>;
3 D9 R' ? L5 V- Z until <condition>;
: x& \0 l2 U" y4 j: M" ^4 }; v (4) for <condition> to <condition> loop
/ m% k3 _) T0 b r- p <statement sequence1>;! ]$ Y5 y9 M" ^6 J- o* a
next;
% A/ O7 y7 z# g: [) w; V3中断语句; l: E4 x' ~6 k6 F4 H# f1 K+ u0 Z5 N7 m
waituntil <condition> prio <integer expression>;" I* w& j' f8 S6 Q5 o: Q) B2 A
; _# d& j" h5 J6 {
' H: k/ l( R$ v) O7 x. b2 A以上为常用的函数！
, e% O% }- U! k# N% ?+ G还有很多，如有需要我把资料发到你邮箱里 + @. c4 E* v$ r; A$ v9 b( B, [
; q8 k$ S$ L$ h- r: w- S3 C
& S9 [; |, M# _# B- M
; N" Q/ V9 Q: o. h% j7 m: Z ) _. b- z( ]) a
+ e/ H$ b9 A5 |: `. `1 S
) b& r2 q% ~5 }; a' i6 N9 {
& o+ V: P; q2 c: g4 `4 x% x: @
2 V( [/ M! W) e7 R
4 c: z9 A. g. `2 U, a6 j
: C' R9 w6 Q4 U2 y |
|
[复制链接]
