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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;
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<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
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when <constant_list> then# P1 r$ r) q4 E( Y+ V" h! c8 o7 @8 p
<statement sequence1>;- r; u+ @2 B: S8 H; H4 r' A
when <constant_list> then
* ?" S/ V a/ n7 A0 F2 i0 t& ` <statement sequence2>;/ a$ Z7 @# c* B- b2 c x
...
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<statement sequence3>;
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2循环语句
& ^9 ^- l. C7 n: o (1) from <statement sequence1>
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<statement sequence2>;
6 |( R V. w: X; i& C: U) T end;) t _% T/ P' ]6 N. k D% k+ O
(2) while <condition> loop1 k0 g ^6 ?6 D# E8 H* G. @
<statement sequence1>;
9 s* }) ]* W2 r2 q" i end;
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<statement sequence1>;4 ]2 E f8 L/ w
until <condition>;2 Y u, l$ H: Z
(4) for <condition> to <condition> loop3 S% m4 u) h6 T7 l) P' F: m- S
<statement sequence1>;/ [* H! ] D: u+ d( c
next;
1 X/ v/ O7 H/ e2 M$ d3中断语句
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, C' b% _' C2 k3 g以上为常用的函数！5 {" ~' M" Z. M. z- a9 i
还有很多，如有需要我把资料发到你邮箱里
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