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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
* e8 u. |) i" P4 u e5 D5 w. p if <condition> then
5 A. Z+ x* v8 a4 ^5 b8 K <statement sequence1>;
) v# _' ^' u& d/ Z1 f elseif <condition> then v/ l: Z3 y8 A9 |
<statement sequence2>; k+ v, f& t5 }9 s; v3 d9 w
else
) m$ x5 v/ q5 }6 z) }. u3 t <statement sequence3>;
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如果分支比较多,用: A2 ~4 G* \ \4 R+ p! v! l
inspect <expression>$ g9 U8 _1 O8 E" v( i
when <constant_list> then- U2 t1 B5 [. O9 j
<statement sequence1>;
4 l1 ?- j6 k9 Y2 p( @ when <constant_list> then9 L9 _1 @8 ?3 I: G4 _9 ?
<statement sequence2>;
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else
2 c b$ ?8 x- b0 C <statement sequence3>;
) d' \, f8 H8 O! o& {4 B Iend;
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2循环语句
0 @1 n4 b4 ]% n/ S/ v2 m: z2 L% E (1) from <statement sequence1>3 y _2 F$ b H9 Q* n/ j" F6 f
until <condition> loop- E& g5 h( {/ ^! L
<statement sequence2>;1 I. N, n; d9 a8 w
end;% R8 k9 w0 r- u. [
(2) while <condition> loop
0 K: q, j- W& x* |: X$ @1 K <statement sequence1>;4 r* b# t+ l: H7 N
end;: A# p. o$ J! @7 F& H
(3) repeat d( e* [5 \9 c! W
<statement sequence1>;1 K2 U6 O2 A' r) P. r1 s
until <condition>;4 u1 U1 L! E, ?# A7 V
(4) for <condition> to <condition> loop7 I8 z# _7 Z. s8 h
<statement sequence1>;
8 X% f: L. Y5 K$ ~ next;
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waituntil <condition> prio <integer expression>;5 Q* F% F3 K0 B: ?) D
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以上为常用的函数!6 E& i- k( E9 E! L. E3 Q
还有很多,如有需要我把资料发到你邮箱里
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