|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句5 G2 ~$ k# u' |3 b3 M1 K
if <condition> then
, k! Z! \. B% J! {: e0 P) v5 {& V <statement sequence1>;
0 ~; E+ \5 C5 Q; ~7 q elseif <condition> then
' @, m4 v) H: {% \, J, ^% C' y <statement sequence2>;
! k/ t+ ]8 U5 X else
- E7 A$ q9 j8 v$ s3 K* t$ J7 Y <statement sequence3>;
4 \: v! C7 ~; t$ A* y end;
U- E2 l/ L' N, {, m: _如果分支比较多，用：
, ~2 n! d i1 R3 F! Z inspect <expression>
1 V" h3 \8 E- \$ v2 e when <constant_list> then6 p& W2 ]' @' U/ T
<statement sequence1>;9 n x+ o. w9 r Q, |" v
when <constant_list> then
! e' W* f! G5 ^. N/ |, ` <statement sequence2>;+ `$ ]2 y( J4 a+ t- N
...
5 H3 k8 `$ i* W$ b$ T5 V! U! h7 o6 ` else
* R6 A: Z+ b/ D0 Q <statement sequence3>;
( _. U" D. e. H9 d/ o4 ]4 y' oend;
0 I4 a, ?+ \1 x# z# J( [; ], n: A2 X/ h% W( f
2循环语句2 A" Q. I- s0 c/ |0 h. T
(1) from <statement sequence1> G1 H+ x7 ^7 X. A* q
until <condition> loop: x, n/ i9 {7 t# M
<statement sequence2>;0 K% ^ I6 }% F7 O
end;
% H/ l: k# G. u3 @ (2) while <condition> loop
! a7 ]% t/ S% a <statement sequence1>;
& y- @' i9 z9 l W end;
" c4 d$ k) H8 e2 I j( y$ ^* N (3) repeat & q6 H- B7 V M" o* v5 U) }; |9 h9 m
<statement sequence1>;1 n4 X& H) A& r
until <condition>;, y- k) q2 e. H9 L' L. m
(4) for <condition> to <condition> loop
: k. K. p/ @, H5 W( F2 [0 P <statement sequence1>;
6 I0 A- M. t% f% G3 T$ o8 g8 B next;
: p/ ]( j |9 E4 D" _ i! z; J3中断语句
: v& x# @0 X% Q( W( a4 G waituntil <condition> prio <integer expression>;, F& I( D! u2 R( y: m8 ?
1 u+ {7 O; T2 c* {7 h4 J
% ?. J5 z0 i2 g以上为常用的函数！$ F* Z! y3 ?2 _# W" m' |
还有很多，如有需要我把资料发到你邮箱里 4 V h0 u7 W9 O; ]+ N) t
7 `% y% A+ e0 Z! V
: X$ R/ S; E! c
6 _ u1 t! C( z
) e- K, H+ C8 l5 l; A) f4 Q; j" B5 l" j7 q1 V& F1 }" S% ]% k
+ Z& b, C: Z7 l* e: h6 S$ r$ R2 z+ m9 ^+ n
9 {* _% v# i( S! J" B8 ?+ Z6 [6 U- R5 [+ q7 N# J
# L1 S/ \3 t9 ]2 I |
|
[复制链接]
