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发表于 2012-11-13 08:48:12
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1判断语句
, i; i; h% d, o4 b if <condition> then* E( S4 {) s9 y; D0 d/ |
<statement sequence1>;
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<statement sequence2>;
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<statement sequence3>;
& f1 ?- E3 \1 k1 c) |7 a; B end;
Q' }1 @1 I$ W1 l, g2 X @8 }如果分支比较多，用：
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when <constant_list> then
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when <constant_list> then) K$ o2 T; C9 m, [9 E$ p* N: T
<statement sequence2>;1 d" y h' i6 Y' p8 w
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else9 U/ H' A7 v5 ^4 Q. Z, X% q
<statement sequence3>;
[) ]3 H( O0 |$ F0 y) u! Fend;" Z+ \4 b: O: z1 l' T4 [1 P2 G) J
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2循环语句1 i) B' T0 R" H% F) k9 R; C# _
(1) from <statement sequence1>
% L) g1 H4 t) N8 q until <condition> loop! ^' S$ J. p+ H; r% D9 N
<statement sequence2>;
) F+ d3 W- g; p& L- ^0 m" X0 f end;
# h3 P! O u' X$ X; W3 B' Q (2) while <condition> loop& a, }0 u+ |& ` r8 A" ?% W
<statement sequence1>;9 ~% U7 k% g( ?6 C3 `& ?
end;
, G6 o0 I8 x8 L3 X$ i+ C) e( B9 t# n2 p (3) repeat ! R- Y/ P! D* M
<statement sequence1>;
# w o9 ?9 Z5 @: u0 ]' n( Y until <condition>;: S& X; I: K/ V: l
(4) for <condition> to <condition> loop: e# l- \( Y" v
<statement sequence1>;
5 F( \. q8 G: C% d" _& e1 l& y next;2 T; [$ n h; E8 j
3中断语句
+ l3 ]4 r* V- o; W, [6 P$ o waituntil <condition> prio <integer expression>;; s6 `* ?* c" c- @9 Y j
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# y# }/ ~$ K4 {以上为常用的函数！
7 S: o* D0 t' }, z/ y0 V: g2 E4 W还有很多，如有需要我把资料发到你邮箱里
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