|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
) A% {! V4 n) @) k; b if <condition> then4 C, b, v, n! [& Z8 O9 O8 t
<statement sequence1>;
5 v; u& B: O; }5 W! m elseif <condition> then
: @# [# X4 s2 v% w+ o$ e) _ <statement sequence2>;
Z3 n0 ?- d0 M- b+ ]0 O' ]. I* x else
! I! L$ G8 O9 ? <statement sequence3>;
" }, n9 h: N- | end;3 `, B+ ?$ G/ o# i9 }
如果分支比较多，用：- q; n4 g8 V9 i9 a+ r
inspect <expression>/ W! M! u' n" z$ b
when <constant_list> then" O- ?" X# C7 U: r* Y
<statement sequence1>; H3 _6 y/ ~$ L5 G3 t5 i. P2 O
when <constant_list> then
7 x, t: Q$ `- {* }! N( F <statement sequence2>;5 q/ J4 Z8 b$ L8 f4 L3 y
...
/ F, M% V8 y1 g+ F" a else& J* A' g2 O$ E3 m7 e
<statement sequence3>;4 H2 L e. k& j
end;
$ b: @$ \+ J, |& a" t7 Q- }1 e. [* |8 M# T- X v. x' D
2循环语句, F' U+ J: C) o0 O
(1) from <statement sequence1>
2 s; O" ]" B/ T until <condition> loop$ {5 R# J5 B! N+ Q
<statement sequence2>;
5 F# n6 j) x- t end;; \4 O7 A; A! T/ _2 t
(2) while <condition> loop8 _ K+ A$ _$ V; Y
<statement sequence1>;8 h% D! f; Z) a% H6 m
end;# X6 z" _: x" X" g
(3) repeat
6 q' ]. [2 C, E; X <statement sequence1>;. j+ Q. N, S" A, @. I! H/ a" L
until <condition>;
$ m2 } A( q; ^ (4) for <condition> to <condition> loop5 l" q1 k) h& L5 Z' j4 }
<statement sequence1>;
. \: ~7 F1 d. J& r next;
& n+ w" P1 E( l3中断语句
0 j9 P6 _) t5 o( c* B waituntil <condition> prio <integer expression>;
) g, T! X/ o; [, G9 f o0 W p M9 J' m; {/ e) p
$ ~$ s4 Q5 [6 G2 D. o. @
以上为常用的函数！! K0 M; v- Y o
还有很多，如有需要我把资料发到你邮箱里 - Y9 A3 j- {1 A! S+ ^5 H, n( U
! j3 D4 \$ F# E, O
0 o' Z3 @- s* D U& i6 \# G! A8 H9 z- l
9 Q) q5 R1 W, o* q2 K" s: b' a
* d7 h. \# ]5 M4 c
# b0 l Z8 k% I0 q {
- [& `6 M4 u: f7 p$ C4 y( P
5 q% P& ^# b: l* {# z3 X+ @# r$ q% W: E( @) L
2 l# B, k( R7 c) K6 t5 b
|
|
[复制链接]
