|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句+ ]& p' g. |" w/ V
if <condition> then' p4 e# c+ \9 p/ f; U
<statement sequence1>;
% q g: |% R, S elseif <condition> then: C+ |6 ~" J& s( G+ L
<statement sequence2>;5 V1 C0 t5 ^1 k5 e" F& I2 |
else % ~! n ^. O* f h7 u" {+ O
<statement sequence3>;" R& ]8 g4 I/ e/ U8 h
end;; ~: L4 I1 M9 U' f
如果分支比较多,用:
* z. \& Y+ u: o( k! K! s inspect <expression>
8 H, [+ f4 a9 W9 c- ^) P4 p% e when <constant_list> then1 P8 \( _# @ i6 R5 `/ r
<statement sequence1>;
! l, l0 w/ O# i% a9 e s when <constant_list> then
$ W- {+ E8 C5 u, Z <statement sequence2>;
' o( h1 _. @8 p. X) I ...
7 ]" }& c% g; p) c- I3 h- }, L+ j else7 ?! g+ H! j5 Q2 `" _2 Z
<statement sequence3>;
# [3 I. o7 y) s/ u+ jend;6 X! k7 F3 S8 b; ^
1 ~9 [5 ]7 y. O* |( f; S8 H4 a2循环语句; T9 N( G* P" n c; I8 q2 }, g
(1) from <statement sequence1>
; }( D: x5 @$ S: ?' q0 @1 }3 D until <condition> loop
1 E. B* R/ z$ w; [2 g <statement sequence2>;
& Y1 N/ _% B+ j3 M end;2 a. y7 f- c; }1 `2 q% A7 W6 |+ H0 i7 ^
(2) while <condition> loop& Y* B* u" x2 D1 K0 z {# c: g
<statement sequence1>;& V. G) J$ j8 ~8 ?/ \! P9 a
end;5 T7 |7 g4 L( i9 f! G ~+ a% k
(3) repeat 2 G S( I, Y0 u, R3 b2 {
<statement sequence1>;" v0 n$ B* }3 x5 f6 M- h9 s8 F. c
until <condition>;
$ [. J4 J9 k( a8 t- M (4) for <condition> to <condition> loop
* C I! f7 Z2 H) @ <statement sequence1>;
% A: Z$ |9 f& c4 k" Q next;
, A `# g) [+ g2 H) |- G+ _3中断语句
' A( @1 ] l% S0 F- ?' b7 Q waituntil <condition> prio <integer expression>;7 W7 b7 s- i; V( I4 m! n
+ H# a) m9 ~+ k b' T* ?# e
) m8 z- [# j7 g, Z; g以上为常用的函数!: Y/ [6 [6 W9 f% p. d
还有很多,如有需要我把资料发到你邮箱里
6 Y1 N% F% P \: n# W1 `9 q6 I f, d8 q8 c. z
; C; e- \) w. c" Z
: c' v0 F/ L& ~5 J7 W6 @ . s0 v6 H3 @: u, p
# I+ I" S: [* l% i c- m0 A
% B6 Y, C5 A3 }8 u: G( l( Y9 A1 o& f$ G# T1 D& _- @
3 ?- V: I) E9 v: X$ D; J, l# L+ g* q; d# h
5 k+ e. @& _1 x7 U6 ?: O% A$ K# i
|
|