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发表于 2012-11-13 08:48:12
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1判断语句
; I- q& V3 v7 O& y4 ^/ n* B6 k if <condition> then$ h5 O7 `7 C6 f& Q
<statement sequence1>;( R9 N/ A5 x* i4 B# I
elseif <condition> then$ H$ F8 ]) p* @* p! X; d
<statement sequence2>;
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<statement sequence3>;5 E6 P/ Q8 n3 n7 `3 ]( d. ~
end;
* l( ~' {6 S( R% F1 x如果分支比较多，用：
I3 j2 V& F9 \+ X1 D; T inspect <expression>6 `2 D; t* B0 W1 G; m' f% l
when <constant_list> then
5 o. n( S3 c. K2 b' H% [ <statement sequence1>;
6 J" w/ J2 U* f6 U0 F" E when <constant_list> then
* E4 z9 n/ d' r/ `$ \8 o: ] <statement sequence2>;
8 a3 {" ^, ~: ] o N2 U ...
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<statement sequence3>;- ]+ m+ a: D" [, M& T
end;
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/ r7 J" ^; @1 X1 k$ D& @7 g2循环语句
/ W8 \6 S. ~; B; v" y (1) from <statement sequence1>
: U& k; s) d8 F, Y7 @: b# d until <condition> loop! [! ^3 F9 K- R7 o0 [5 h& H6 O
<statement sequence2>;1 `0 w% U5 @1 ?5 ]/ t1 |9 E
end;+ u9 m! h3 t4 Y. c; e
(2) while <condition> loop$ T% a7 F- e X. g1 S
<statement sequence1>;
% d8 D2 A) K# E; X3 p8 q: x; v7 b3 I end;7 u* u' ~3 {+ L! M0 r" N3 ?+ Z9 X0 G
(3) repeat ! E1 b/ B! k) a9 b2 l" F2 l# c
<statement sequence1>;8 R2 w' A8 I9 e, W. k" ~
until <condition>;; m/ X' a ?2 r$ Y+ V
(4) for <condition> to <condition> loop; }' L% `; p2 S$ x' }
<statement sequence1>;
3 \7 ?- d X0 C- t next;
1 ~ T9 ^9 n5 S# Q3中断语句
) ?/ A8 `- n7 L5 _ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
" c2 E" h! n5 t( {还有很多，如有需要我把资料发到你邮箱里 " X# v' c- d) L* O$ p6 S! |
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