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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
8 L3 Q0 {. u9 @0 K9 R$ T if <condition> then; w, x' v/ [0 P9 Q
<statement sequence1>;
# ~6 q* A. Q! I7 E( N elseif <condition> then4 ]# U* S( {# b
<statement sequence2>;, z. a# N; q2 j0 V. k# a* ^
else - ?1 V% N7 ^' \: S8 o9 E4 k
<statement sequence3>;% B7 t1 { c% ~5 k0 l
end;; Q/ l, V8 M0 t
如果分支比较多,用:
/ z4 J4 `9 |: L: D& g/ a' O inspect <expression>; P- }# K$ B& b( Y& B
when <constant_list> then( U7 @9 ~7 d6 V6 |4 e* C# _! }+ t
<statement sequence1>;4 |+ v; i% T8 `' b) m- O0 q" H2 q
when <constant_list> then# d& j+ r8 w( I6 S! @; f
<statement sequence2>;
. w* i$ U% E- Q3 c* @+ ` ...
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<statement sequence3>;$ W0 O; @( e8 \; }9 V8 S
end;! X: R. v7 B+ n0 ]: v- L
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2循环语句% _; B% M6 m7 a! k
(1) from <statement sequence1>
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; d& h0 Z. l0 P9 z" ] <statement sequence2>;
, z% S1 [% i% P( q; r end;
2 {0 z; P( f, G) d (2) while <condition> loop
; M# P V$ W: q( ]1 ~. h o( a/ | <statement sequence1>;
$ r2 S6 C. G, H K: Q end;) V* S1 _" v: m; e2 x* U1 x
(3) repeat : B. n! w q- Q3 l8 q! m
<statement sequence1>;) B7 X4 z1 S, ~% `
until <condition>;
9 e/ u% A% B2 J) H: x0 K' { (4) for <condition> to <condition> loop
! _* e! k: q) d% Y9 [0 ]8 t <statement sequence1>;* Q* H/ b, j3 s5 }
next;) l) A7 p8 z2 R; t/ ~" }
3中断语句; v: Q9 A: f: E# L I! A% F; o' a0 b
waituntil <condition> prio <integer expression>;
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; j9 _6 A" `- V4 q1 o" ?
! h# M# m4 B+ Z C' m' D4 Z3 x以上为常用的函数!
! {' S2 A" j+ f; f还有很多,如有需要我把资料发到你邮箱里
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