|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句% E5 C: J3 o! z* T9 l$ U$ P
if <condition> then/ S7 [$ P9 j- ~* o# T
<statement sequence1>;* C) ?3 T) _0 b. Y0 Z( e9 J
elseif <condition> then1 c1 k: R0 E1 Q* e9 X% D
<statement sequence2>;
( G9 \3 g, p7 @- ? else - c9 N* ~# I4 R' T
<statement sequence3>;
5 U" x3 W% B% q1 i) s: }9 P* t! [ end;4 D+ @- i' o* E u4 Z
如果分支比较多，用：
/ h" Q" Y; Z' n0 k! b inspect <expression>
) a/ W0 h1 V* N! D) @, J* T when <constant_list> then
, D& }: ~5 }* O1 J. Y+ } <statement sequence1>;5 X4 P% @0 A' r7 |
when <constant_list> then H, B U0 E& d
<statement sequence2>;
8 f4 g6 v; ^1 G. g% R( g* z$ Z' z5 P ...
* a* K: c O. p$ E else
' Q1 N3 y" F' ~. N, I4 t; u <statement sequence3>;; `% F3 P- r$ L2 p' i# z( l
end;3 B9 g3 S9 X" M \
" ~6 t/ k. _ u2 D0 n/ @
2循环语句
+ P, l: M! k- ^" O$ z- Z (1) from <statement sequence1>8 ^* q( F2 j/ {& E: [& W# }- F
until <condition> loop
5 P3 ]9 ^9 u: M& A7 x" y6 J6 K& T <statement sequence2>;
! I. h2 T1 n: X% e: x end;
' v2 d& d& K( C5 y( x (2) while <condition> loop" y& c7 F% @. J& J/ i
<statement sequence1>;
/ p( s- F) I% I; h- i- ] end;
1 c( \4 q0 X5 m' g: u- a) _. y (3) repeat % j. O1 H; a; ?. b
<statement sequence1>;& S! k, G% t& q8 w6 @# V5 R I
until <condition>;/ i, y& Q( [5 k1 D
(4) for <condition> to <condition> loop
3 n6 p5 {7 F+ i6 D <statement sequence1>;3 E. c8 W1 k6 @* {9 M
next;/ r5 V: o9 N6 K" ?9 P. q# }3 N
3中断语句
3 d( i3 X9 K% d) S S- q9 e1 d8 M waituntil <condition> prio <integer expression>;
9 W0 s$ Y [9 k7 }" G( a8 x/ D
% n3 p& ?' E4 n9 s1 I- K& ^$ Q& ?1 _5 X7 \2 S; D Z
以上为常用的函数！9 h+ e9 I/ @3 j! b: J, d. [ J
还有很多，如有需要我把资料发到你邮箱里
& [2 H E2 H; O' K" g( r7 k/ I% A7 g: U' q. G3 a2 b- o
& E! K" S. Y5 p
$ N2 y. a, e4 H% A" T5 n
3 o$ e1 T" {, C% c- ?1 s2 j3 ~" n T
8 y; R% G/ F0 ^+ X/ ^9 |
& P" G! Q$ d& j5 C
* r u2 f7 i4 [
l0 {. H+ ^' l$ c3 [" h 4 |* P P' W# R
|
|
[复制链接]
