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发表于 2012-11-13 08:48:12
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1判断语句1 R4 {1 t+ P' v! q* @4 A8 a1 {" Z
if <condition> then3 }9 W% B2 G# u! p; @' s1 A
<statement sequence1>;
9 }" F6 K/ g% x; l5 ]0 e I elseif <condition> then( j& t& N8 x0 i; o M- ?! s
<statement sequence2>;
[6 F% y( J/ ^- O$ s& { else : Q1 K9 b7 Y5 |5 F5 U
<statement sequence3>;
0 v9 l7 f. i2 B$ [. q. Y end;
. p8 m6 p( V7 Z* D# U; h0 Y如果分支比较多,用:; q: V3 W0 d- c" `* C% f
inspect <expression>, m$ y E8 p& Q* v
when <constant_list> then
6 m9 S. ^* P2 K2 ~ <statement sequence1>;
( q( U9 J ?) n* K" ` when <constant_list> then
1 q2 N( N, ?7 {6 b* d <statement sequence2>;
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else6 r7 B J7 w& p
<statement sequence3>;
3 |5 {2 k: ~: R7 }9 U* n4 q$ m, Yend;
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: E1 z2 S1 V6 ~2 G: V2循环语句
$ h' k" e' L9 A" @+ X" d# U: N( K (1) from <statement sequence1>
5 G9 k9 t: @: ?: }7 @$ w5 J until <condition> loop$ r& h! P+ t6 x. M
<statement sequence2>;/ o" J& j& M( G$ d3 A7 F
end;+ {' s) }/ }: t# \
(2) while <condition> loop6 f3 [. ]0 E$ e5 b2 Z8 U
<statement sequence1>;
2 i& p9 r/ O- k end;
; {! m3 W' i" j4 ` M2 f2 w (3) repeat
" l% p' S2 q. \. Z) _) M/ O <statement sequence1>;
+ {$ h+ s/ ]4 ]) l4 l until <condition>;6 K* ^# z% y' U/ Q" \6 b2 [& i0 s
(4) for <condition> to <condition> loop1 \9 b! E9 I# i5 ?* e
<statement sequence1>;
% Q& J) ?9 R' \6 K. e) s next;9 e, Y9 C2 g% f* a
3中断语句* k z, R- q; [6 [+ U+ p
waituntil <condition> prio <integer expression>;
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# M6 _" `! Z( n1 `4 o* W6 Q$ r" v以上为常用的函数!
5 C6 a# _9 {0 s$ r' B* X还有很多,如有需要我把资料发到你邮箱里 : W. f" N( K# d* X0 L
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