|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
- y S7 R9 q. I9 y7 v0 `+ g if <condition> then
3 Q( f; C: v" M <statement sequence1>;2 k! u" w7 B! ?+ c3 X- _ ^
elseif <condition> then
% g L$ C5 f W' \, N7 g- U <statement sequence2>;
# G! W6 W( u# { else
8 B- k/ R/ {/ H" `3 h. {$ p- I1 u <statement sequence3>;/ Z2 t9 E, m$ p- p5 k
end;
# }+ C" @+ P' E# k. t/ h6 C如果分支比较多，用：
8 Y% k& ?4 T u7 _% [- Y$ X) d inspect <expression>
5 U0 N# [% e- h9 O2 J when <constant_list> then
5 B5 S, i6 c6 j& i, c/ _/ J <statement sequence1>;3 X8 o; L5 e& E
when <constant_list> then* o$ o0 v3 e! z' v8 W; D
<statement sequence2>;
2 F2 p: ?+ o% `' b: x ...
* u' Y4 t$ U( p* \% p+ M8 t. ^ else7 \2 ]/ ?& s6 C; b2 n/ h1 b" a
<statement sequence3>;
( m( t/ Y- J+ [9 ?7 C$ Xend;; _8 p* Y3 W6 F( @* ` b8 v
& e+ q2 a$ a0 t2循环语句1 l( Z1 l6 O: P
(1) from <statement sequence1>6 P6 z; n6 ?6 Y3 C" c( a# _
until <condition> loop
; S/ ~! t, }& d0 P2 \* W J/ D <statement sequence2>;" Y, P2 r: q. o9 F
end;" y3 \% x4 ]7 w
(2) while <condition> loop
4 _! Y- \+ t8 w) r% I8 z <statement sequence1>;" `1 W' s6 ~: S5 C t/ D$ w7 P
end;# u' F6 k+ n3 h3 v
(3) repeat $ X+ L& }+ ~$ e1 V# u- p
<statement sequence1>;1 p% s" x7 K) H+ @& r9 u( P' a2 V
until <condition>;
% M5 N6 i# p6 u4 ]' O4 p (4) for <condition> to <condition> loop. Z' j+ J% E8 t) W& L5 c
<statement sequence1>;
6 n. W: S5 O0 w$ [, ` next;3 ]1 w2 p% E' Q( m) c7 Q# e0 n& T
3中断语句
5 g0 a, E4 E# d; f% c waituntil <condition> prio <integer expression>;8 d, {2 F- {( {% B- q, |
/ @* p. l! F5 x
* s e$ C1 J' U
以上为常用的函数！% @. F+ Q. a: E3 g% [; K: Z
还有很多，如有需要我把资料发到你邮箱里
5 [: \7 @* B- x2 j" C6 l# q- I" {6 S7 W
! L6 ~5 W$ p+ ], v1 z4 \
. ]0 _$ O2 `% t' a0 I - k1 e4 F* g" e, H1 A1 U: f
) J, v8 \' c$ S( P5 m
& [/ U9 L/ y' L* ?7 N$ I5 f# r6 B# x( A
* @! w1 S5 I, y. z" q5 h5 @8 M
: A: y6 _8 X+ L$ r
, P% w e8 O& N, n2 ` |
|
[复制链接]
