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发表于 2012-11-13 08:48:12
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1判断语句" G( k: C, p) I
if <condition> then) w7 V) M6 k' j0 }
<statement sequence1>;
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<statement sequence2>;1 u& l+ \: e& {! n5 a1 |9 z
else , { D0 a1 o5 a- k. ^1 r/ W: \) o' J
<statement sequence3>;
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如果分支比较多,用:
5 m7 N6 B, r% J0 r inspect <expression>: m- O$ k# B' l/ D6 O0 f
when <constant_list> then
' j8 H2 F4 Q: P9 d0 b3 p0 W <statement sequence1>;' p# z( _4 s9 g; A0 L
when <constant_list> then
$ c: w( u O& z# [2 Y. w& O <statement sequence2>;: A/ j9 B9 q! u' s
...
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<statement sequence3>;* C$ P9 B6 |- b6 _2 q" O( p
end;
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2循环语句& T7 Q% L& Y. |# u/ O9 \
(1) from <statement sequence1>& M1 Q0 @1 S+ e% z: n' ]1 H# K
until <condition> loop
8 Q+ O$ Y, b% V <statement sequence2>;& U1 D3 [4 h5 }" D } w
end;6 ^7 T" u# q. }' f H: v6 B
(2) while <condition> loop
& r5 C) n) h; a" H. w( v3 m <statement sequence1>; q! L; { n. v3 N4 k ]% ]
end;" H* ~9 W6 N% }/ n! s3 L
(3) repeat
; |4 Y d. E& T" Z4 N* c2 _ <statement sequence1>;
. L4 `! g# r+ C+ [. H. L( C" u$ S% D until <condition>;: ]3 ~ U8 ]) F! t% P
(4) for <condition> to <condition> loop! l9 ?1 u: m$ [: a y
<statement sequence1>;
' C8 Y) t& s& {0 m! U next;
8 z+ ~' h" h% |6 O' g; Z8 A3中断语句# E2 w' X$ N' z: E2 r9 i' Q
waituntil <condition> prio <integer expression>;/ h/ g9 L4 ] j. \
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. I: P4 ^- K; O- w以上为常用的函数!7 ?+ R$ m1 x7 f- \ g7 x
还有很多,如有需要我把资料发到你邮箱里 ' `" o t% I8 A% W0 T1 [
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