|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句7 c8 h; C* B7 X0 F/ ~
if <condition> then
! k. Z2 F6 N/ [0 V1 D8 t1 K/ Z& { <statement sequence1>;; y" |' u+ J) ?1 q% f
elseif <condition> then* H( K, ~8 G9 d: T6 h, u4 x
<statement sequence2>;
& z1 z9 l. ]3 L! E$ _9 I& @ else
! x7 i6 t) {9 h9 q9 I <statement sequence3>;
) E5 f# |1 |4 t1 M+ N, ? end;
6 ~& W: h+ d; j" Y0 v如果分支比较多，用：1 n! m: z6 G$ l4 c
inspect <expression>, ^ ^+ w0 ~* h# G+ C3 S) x
when <constant_list> then. w& t0 Q+ e% z3 w7 W0 W8 r/ N
<statement sequence1>;
9 V+ ^; Z P" f, p/ G5 A when <constant_list> then$ f L# I8 Q+ P& V: o
<statement sequence2>;
% z$ H% ]0 J3 e2 V1 W% Y3 ` ...
" |" k- T# }8 D# G else
" b% _7 @( ^. b4 n* T+ o <statement sequence3>;
* F0 R5 m j3 m6 ~% eend;
; k/ g: z8 ]2 `9 `$ W. ?! S a0 g$ E% u5 y
2循环语句& S0 M' N5 d, ]$ @8 k
(1) from <statement sequence1>
# p0 w6 g( m. a0 N until <condition> loop7 `0 a7 @0 Q' s
<statement sequence2>;
* i2 ^- B2 s5 j end;% y8 ^9 v% r5 P6 B Y8 q
(2) while <condition> loop% J; H& e, v6 o% `$ W/ o) T- _0 e
<statement sequence1>;# e Z8 Y4 v/ }0 c
end;
8 {1 ^/ R& A" ^ l4 C: \ H (3) repeat
O5 [# |( t) w! n2 b <statement sequence1>;) ]0 W3 V& w* m4 ]
until <condition>;4 g- [( Y3 t5 @! b7 T+ v3 C } Y* l
(4) for <condition> to <condition> loop
( C; B/ K, k# J% F <statement sequence1>;
% i- j7 X2 N9 h2 b: ~! B next;" n7 a3 q( L8 l& g7 X% E k, [) l
3中断语句& K. f4 t: _, \( ] |2 B3 D
waituntil <condition> prio <integer expression>;2 c& ~+ [6 h- e+ t& D8 T
4 y' m( g7 @" C2 E t+ t
$ H% B0 W& M5 M$ }+ f, c以上为常用的函数！
, D8 h' p5 d% A* v0 d还有很多，如有需要我把资料发到你邮箱里
* V, e# H, v3 e2 k
6 n* } \( g/ ?4 B" t/ p/ F
, ]6 Z3 D, t& M9 d4 B" R, ^8 u
. s- P% K* w1 d$ [, T
# d/ U& F+ l$ c/ p" h2 o3 i9 U9 u: E6 k6 H+ v( r( l& x
: f$ o! e- i0 m) F* ^+ \. c
+ E0 A) g, {8 ~
! d# @5 j S0 b# O5 A% X& _
* k1 I. v% R1 r( B* J |
|
[复制链接]
