|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句+ ]' C. o$ ^8 ]" t1 b
if <condition> then9 B9 \# A' v' f
<statement sequence1>;
/ p* S0 m( Z$ M6 {6 f2 } elseif <condition> then; X/ n" T- J# R- y) Q% M6 Z. w; [
<statement sequence2>;
6 Y: j* ^( N: a' ?+ ~! s. u else / [3 L, [3 k: t
<statement sequence3>;
: E2 Q) K9 ?( C' Q( ~- }6 @ end;9 d8 Q# C2 u! P/ o4 w! T
如果分支比较多,用:- \5 ~; E* Z1 }/ A' V: e b
inspect <expression>
. G" c' u) [/ [% g+ R, A( U6 Z when <constant_list> then
0 |8 B3 m j% Q3 d$ |% N <statement sequence1>;6 U" G/ h. M) c) Y
when <constant_list> then
! o/ | ]' N" X <statement sequence2>;7 {1 I7 }! v/ h4 k4 C
...6 O9 \! X' J3 x9 V$ K* k
else
4 l9 y/ A. b2 d5 L ` L5 x4 r <statement sequence3>;
# j/ S5 D9 y) q9 v* `end;
, o; y) N% D) s. b \+ N. t3 v! o- G' V. G7 }; u2 n
2循环语句+ U% L- M# N7 X
(1) from <statement sequence1>
5 ~+ b, B$ O6 g$ R4 r0 g until <condition> loop4 e' A/ h; K/ ?9 E0 c- ^
<statement sequence2>;
& c) _6 o2 L: `: u end;' ?& N) B8 Y2 d2 g$ v- Y
(2) while <condition> loop, S0 f3 `3 ~) d6 i& d( i- Y
<statement sequence1>;
8 O7 z# k" v. ?: E end;
`) a9 [8 i; P% R' m (3) repeat
$ g* q+ {9 P4 C- x1 m <statement sequence1>;' a' j3 y7 m, A& c7 F4 m6 w
until <condition>;+ L$ c" z) z ~: `& w
(4) for <condition> to <condition> loop' z& K7 S/ x" `4 S0 Z. R [
<statement sequence1>;) X7 ?+ [1 s' x0 \. G
next;
$ \+ O' v( r9 C3 _3 n3中断语句
! c3 [* }; r# S: l' w7 h waituntil <condition> prio <integer expression>;# U: f& X, P% p% a. a
) [( L f% R, y6 S
" b* K Z( h F! h; g
以上为常用的函数!
6 [6 V6 \, O5 t/ ^还有很多,如有需要我把资料发到你邮箱里
4 d; U* w6 _3 r1 e {- l- N* S' I" L" f
7 Z( O8 h5 G/ F3 {8 ^8 ^- S
8 @! v/ A0 q+ E5 r
+ b+ C+ O3 l3 ^3 c/ A% F$ D& y3 W* s6 ?7 E, U; e0 @4 Q
$ N, G# Z j1 Y. M% L( x& W$ i. [
0 ~% @! V! z' l7 E- V
: W+ o& i! T: z; v, h! ~" P1 f# N
, }; R( `. F9 P( I: a
. P+ t/ k( Z; G3 R+ I/ E3 e" z |
|