|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句9 l( s5 n2 P. o9 O
if <condition> then
`! A* h7 m4 a/ L+ e; M <statement sequence1>;& {8 D9 a) [* l
elseif <condition> then5 ]! y3 l3 S! E
<statement sequence2>;
5 u6 y# K1 m9 M/ ` else
2 r3 L" f* G; c+ N <statement sequence3>;
' C& g' z; s j# \/ u4 g# I end;2 g: y, ]+ M% n. R! D' J
如果分支比较多，用：
) A3 i; _2 g2 u; R" e2 D inspect <expression>
" r2 s0 N! d' b% u. S) { when <constant_list> then# K, |5 C) c$ I
<statement sequence1>;
( X9 ]7 Q A; i when <constant_list> then
, h4 w! V% g4 r5 Z <statement sequence2>;
$ ^$ r8 B1 |! r$ z ...
7 ~" Z0 ~- {& Y6 n3 S8 S. i+ ~ else
! y) a$ j5 b B) t; d3 t <statement sequence3>;9 K2 T1 H1 m, z; N
end;3 I8 x7 F0 r9 @1 S U& k4 f8 u! o
" s# D& F& g0 h) s% s, W
2循环语句
, S2 `- N- P+ q+ s3 m( M3 v" q (1) from <statement sequence1># l8 ~- o5 k. b0 e6 _+ X
until <condition> loop
4 e$ X4 K5 }& @ <statement sequence2>;
/ ^+ F1 r' K# ]: K- Y, C' D+ I% n$ j8 t end;
' a; F8 d( w/ A; Y- X1 @/ s. |# \ (2) while <condition> loop2 R+ {& q% Q+ P% [' ^& u
<statement sequence1>;
7 {$ b; Y% ?* r! V5 d) U0 A end;
5 Y+ J& t4 R) _# a; m (3) repeat - U. N. Y- n0 ~7 ^
<statement sequence1>;) E* x" S4 W0 Q& _
until <condition>;
7 d6 {4 d! K$ Q (4) for <condition> to <condition> loop. A& K1 K& q% q+ f
<statement sequence1>;
3 v; Q) [. R4 t6 L. n- @ g; l next;' X% N W, J: V J( J
3中断语句
; O6 m' o$ v& W' j: i waituntil <condition> prio <integer expression>;2 e7 a! W/ T V& H/ c5 K
: P2 k6 g( z9 o- \+ f4 r0 x+ Z8 I8 h+ o/ _" J( o6 A- Y! G1 R4 J* O
以上为常用的函数！& h+ T/ F) f: i4 H% H
还有很多，如有需要我把资料发到你邮箱里 & H9 e Y) [' I' S
6 C* h8 K# f8 O# W- |( p( r8 X3 D; z% W5 ?* }8 R
6 L" s; A% P& Z) W6 @- T" `
" q6 a* i ^' c6 V# S8 S& H( b' n" n: y+ c. S2 p4 j+ c
( Q! A g& v' C# s; J
$ _4 j* w9 J/ Y
/ a+ M$ O) b, d9 p
# g- t2 t( V3 ]; o
( ^6 D% a: w7 s+ r Q6 b5 x$ W |
|
[复制链接]
