|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句+ t5 b& W6 ]; C, T; J
if <condition> then
8 F& T {# G8 C% G* z <statement sequence1>;1 \/ E& F; c1 g, D7 M# m
elseif <condition> then
" x/ [ k5 Z9 B7 D <statement sequence2>;
) h% t- w4 G# W9 X- U else
- W" H, P( }8 m& L3 Z1 R2 L. ` <statement sequence3>;% R! r$ v3 E. m- \; @ p
end;- U+ a$ I- W% W9 _/ n
如果分支比较多，用：1 k; R# o: k) Q) }
inspect <expression>1 P! P( ^' a( Q, N8 t
when <constant_list> then
" U5 d _ O" B0 W3 a0 x. { <statement sequence1>;5 R4 u5 j( c" N
when <constant_list> then
$ [5 w3 }' q( j& {% B8 u. W8 e. C) N <statement sequence2>;
4 B* H7 L# k4 ^- Z ...7 w) N5 Y! F6 V$ n3 ]8 `% _. j$ J
else6 b$ y0 \1 P7 Q; A5 S
<statement sequence3>;
1 `3 _% B" f3 ]end;) I3 Z( E3 j8 g" c9 ?
4 R$ q. u N8 B
2循环语句
+ _/ \% J" ^+ m- P- \1 M8 e9 Y (1) from <statement sequence1>
4 ]" [3 t; j2 e6 ^, B' L until <condition> loop
1 l: \' D8 `7 R/ ]+ D# t0 | <statement sequence2>;* U! g7 p7 ^! j6 C. ]: W
end;3 B# B0 g0 b1 D# W
(2) while <condition> loop
; Y# h: C X/ X2 `1 U0 P <statement sequence1>;! `3 @& Y5 x$ K q0 O" M
end;0 V* F! [( D( w3 e+ r) k
(3) repeat # Z+ _, w: m/ c, ]
<statement sequence1>;7 X. f. B7 C/ Q
until <condition>;
6 A1 p1 q j! ]- v3 H5 Q4 x! T (4) for <condition> to <condition> loop$ E( X( a5 A7 J! k3 o7 t
<statement sequence1>;
0 q% b) G& V9 l$ v next;
7 G0 V8 T2 I, f6 C" e) m6 p, J& N3中断语句
# @# p# @# [3 u) v! z# I waituntil <condition> prio <integer expression>;
4 E S2 Z3 K6 v+ n3 G, ~( n ]9 q# A1 l# o& O9 _8 B
; g$ N3 B5 }: _7 J$ t/ K以上为常用的函数！
6 M; _! b1 g4 v" k' J还有很多，如有需要我把资料发到你邮箱里
F& f/ ^) Y( W& t% O
, `1 B j! d- W6 F, ^* L4 p: `! a6 V8 b$ l: N2 q: }
/ ^6 u$ G8 e. H1 ]
7 X- p, |* N) g( R# Q% D" H' B5 W% K4 D- p" C; J
) Y% h0 e: d3 L, w$ | N/ m$ K, }
9 f) ]" t: d ]/ g3 R: K$ V+ Z$ @; Z' {; i' i
& [; A; ]9 Y2 @1 P8 y% a) n3 u
7 Z) ?/ V; O2 F# q |
|
[复制链接]
