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发表于 2012-11-13 08:48:12
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1判断语句1 C: R* \9 r3 ?4 J. ?
if <condition> then
/ l% x5 T7 f- {; A0 E! e( ~# r <statement sequence1>;/ U* J, b. b% D- Q
elseif <condition> then
. |$ e; D* T+ S. q <statement sequence2>;
2 u$ k0 d$ A7 d8 N; }) M7 N else
( m; i9 }+ q2 s <statement sequence3>;; Z! S7 g( [# H9 H3 q
end;+ [# t; I# H+ i/ d0 I6 X& {
如果分支比较多,用:+ Y9 }0 h( ~/ [. c* ~
inspect <expression>
# U6 f: d; A0 N, F when <constant_list> then
8 E. v9 \& p6 N) j0 B& }+ A; Z. S <statement sequence1>;
% m( Q: Q/ Q: C- e) H! A when <constant_list> then6 ~; B& e& A& l
<statement sequence2>;
- F0 a8 b9 l' Q) F2 A/ g B* M ...0 T. i2 I, o, s1 F
else N; H. d% h$ ~& j
<statement sequence3>;' z% J" R. z7 r4 T: c. D R5 t% O* t
end;
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/ i. R9 O! d, j: y8 }2循环语句
& ]1 R- _9 ~" t& m1 B7 y6 [ (1) from <statement sequence1>
( _; _! y9 c/ }8 g- J until <condition> loop
$ B7 M/ O) o. @2 v/ e <statement sequence2>;
2 b: I! ^2 w3 t. y$ [ end;6 _. D z$ k I0 e' V" G
(2) while <condition> loop
. Y2 |1 L- U9 p( |* C* } X <statement sequence1>;1 E, |. {) `# c/ D
end;+ n1 S1 v& p2 p! `+ s( H
(3) repeat ( \6 q. j" U+ ~) y) m
<statement sequence1>;! {; L% C$ z; j0 j& _
until <condition>;
! N. ^6 B, a* Y0 Z) i/ N, C (4) for <condition> to <condition> loop3 z- [8 ?9 f1 l3 C2 X& _8 U
<statement sequence1>;- z7 K$ g5 u# r/ L
next;
$ t2 s& E! U4 }( b6 A% j3中断语句* {1 G. K8 J' |$ k5 u( Q6 ?
waituntil <condition> prio <integer expression>;5 [9 S. L1 ]' A# ^9 h' s1 k
4 b* t% c9 C0 X$ i+ y, J' Z& Z: f0 Z$ h2 F0 p! L
以上为常用的函数!3 i- Y) r3 H; _( ^, t$ Y7 N% d
还有很多,如有需要我把资料发到你邮箱里
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. _; H3 L% b0 t: ?0 ~
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) s1 o# r/ s2 H* N3 p i ) \! a: R! [' w2 c
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