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发表于 2012-11-13 08:48:12
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1判断语句# g/ n( @, N9 H
if <condition> then
" ~' C1 y. Q. o- @" k <statement sequence1>;
, X e" z) U5 W& F elseif <condition> then
" q: K8 p7 {% ~ <statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:, Z0 O/ |; U0 |; w6 z, Y1 T8 M
inspect <expression>
# j9 @. n$ v. u/ l/ [: u: G2 r when <constant_list> then+ ?& R( @- o; n, ~( h( P# W
<statement sequence1>;+ G4 r9 ?4 U/ Z# p' G+ A5 j
when <constant_list> then% b1 j6 a5 o8 v, Q7 o) b
<statement sequence2>;" O( T" `6 s" ^# u, M! ]
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else
L$ g6 ~" l+ n8 R <statement sequence3>;
4 [. V* T8 i% R6 p% |end;
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2循环语句7 P' o/ Z" b% A- P' M5 B
(1) from <statement sequence1>
9 {1 X( g$ R l! B until <condition> loop
1 O0 Q' @6 y. k: f! `3 { <statement sequence2>;
- r3 r" ]8 }$ W7 Z7 B$ m% w- T end; T9 U! S5 j+ ~: l' p2 ~9 C
(2) while <condition> loop0 _6 m Q& A2 k! r
<statement sequence1>;: H1 Z; J! q' i! t, ^
end;, P; j" @1 X5 b$ v2 h& u9 p* v4 o5 t
(3) repeat
! V! q X: U, j <statement sequence1>;
; R% ~6 `2 E7 ~ until <condition>;
6 K9 j. J3 t: d+ B/ A! v% r5 H% o6 [ (4) for <condition> to <condition> loop
% h5 ^2 W& ]& m. r <statement sequence1>;
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3中断语句/ T- a- P5 [) a4 z+ Z, {3 @( k) r
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
& R1 c& n4 W6 p. Y2 |7 F' R还有很多,如有需要我把资料发到你邮箱里
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