|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
" v- U. r: e$ f6 g/ r5 l e& M3 i if <condition> then5 _( ~. ~% q2 X! I5 L5 `6 C
<statement sequence1>;1 H0 Y9 D# W" Y- C
elseif <condition> then
1 \& ?3 o) n9 R4 @" z# w/ f <statement sequence2>;
8 a+ w4 ?3 k- n( F9 B else ; h7 j8 d$ q' I. p- n5 l
<statement sequence3>;+ n/ d" V) Z5 N3 W4 }( ]) |$ r" w
end;9 c. d! f u: \
如果分支比较多，用：5 \6 E! S# O+ R: C% O
inspect <expression>
3 m" `6 Y5 n4 D: o when <constant_list> then- A( r2 |' n3 A6 h: H& W( p
<statement sequence1>;7 ~" A, g) q( D0 C1 X% N' B
when <constant_list> then
+ k3 x$ P. d; q! e) }0 F <statement sequence2>;7 q5 t: H. P& E- L3 N
...* }" g) @& K5 M7 k& r
else
2 f! W+ l# h# W9 g# m/ ]% E; K* e <statement sequence3>;
' o0 @- z5 s' \. send;
* ~+ b: [1 a. x! P; \
$ A$ Y2 Y: R) T6 @0 }7 j2循环语句
' {5 p% {0 S0 ]* I2 c8 x5 | (1) from <statement sequence1>
2 I i7 r$ b. Y0 M& { until <condition> loop. F. l }/ V9 @9 v$ A6 C
<statement sequence2>;# [* J1 l* S* z/ r6 ~* z6 R
end;- k7 e$ K7 S3 B
(2) while <condition> loop+ [ n$ l& Y- z9 ~8 s6 i5 C
<statement sequence1>;
: M5 x. [( Z# Y+ r2 b; E I end;
8 G* G# T$ S7 L0 g (3) repeat
* D5 o- U, h6 f; M& L1 r <statement sequence1>;
5 @5 c% s. t; Y) X* O) ]9 X( ? until <condition>;, h0 `/ d4 i5 {; X! O, D
(4) for <condition> to <condition> loop- ]: ]4 L3 i5 o/ U/ }, H
<statement sequence1>;
7 o1 A% l8 n- y. S+ G next;
% h4 i0 I. P X0 D6 B7 M1 F! e3中断语句7 K$ ` \ z% e9 r
waituntil <condition> prio <integer expression>;
U K/ q# f3 M# t- n' H0 f1 T
* e( ^$ a: L0 I6 ]8 l3 _
* ^0 t( c! l; p& C( B以上为常用的函数！
4 d0 x, H* n$ l1 E8 X# {还有很多，如有需要我把资料发到你邮箱里 0 b8 h( K- \' `7 ?+ ~5 E& b
$ j4 B. U1 r& t
0 \) w- W! ^3 R) M4 ]0 I& @5 e; K
8 \% l) q' N. K7 O) c
+ G. [- }" |, i3 h( j# S$ k+ [3 g) h) C8 z' C8 c
: A2 e, K+ X' M. Y6 s" ?) N! L
; V: g( U) q1 R) U6 B1 h+ q4 |
4 \! m8 Y- [7 V# ?' ~: [# K4 c& e U
0 v/ _, u+ O4 Z7 w; K# @! ] ' Y7 l4 `9 X5 n& H" M
|
|
[复制链接]
