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发表于 2012-11-13 08:48:12
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1判断语句* V! R" ~1 } ]
if <condition> then4 p& i# L" W" x7 [0 q2 K
<statement sequence1>;3 Z/ l; e2 A# p' U
elseif <condition> then
/ Z8 e( ^" C3 W) K <statement sequence2>;4 W7 w& c5 k0 |: y6 q% }
else
, u+ v( _8 n, y7 I' N- @3 ~8 a <statement sequence3>;6 ?' F$ J/ K( [. P
end;9 S' l) D6 t3 Y8 ]
如果分支比较多，用：
/ S; Z; ?8 f3 k% t5 R( Y8 n0 S inspect <expression>
% p# J }% S: M! S( O2 ]3 a when <constant_list> then2 d4 b( h" j8 l; g% T/ k1 V2 Y
<statement sequence1>;
$ N) @/ T2 i0 N0 {2 W1 y when <constant_list> then
& [' p# O& i' i1 |3 y( o <statement sequence2>;
' U7 x+ K' h) m, E. w# [" I ...
~/ j; v/ T) Y0 n else
8 }% a* m4 q; Q, a <statement sequence3>;8 h7 X! q1 Q/ L( b+ f
end;
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2循环语句8 j8 F! x, ^; J
(1) from <statement sequence1>1 N4 I4 e/ p+ K0 G3 s
until <condition> loop
) C, P$ I. c& z* ^( S <statement sequence2>;
9 l7 P+ @7 x c/ |+ x0 | end;/ \1 S, u( a2 c1 M0 a4 B
(2) while <condition> loop
3 p6 c# Z* L# h' M$ z3 j$ B5 { <statement sequence1>;+ H. ?: Y$ ]8 k8 y) u
end;% c% ^7 q2 O( s" K- D( u* J: D9 ~
(3) repeat / d2 d% \' x! S, H% K6 Y) z
<statement sequence1>;
1 A5 _- x1 g" \1 r until <condition>;1 E8 X) n4 [9 W1 e4 K( W4 n0 j
(4) for <condition> to <condition> loop3 @/ e0 X2 d- G7 ~0 N* O! J
<statement sequence1>;5 b$ }) V& m9 O& a3 m
next;& @2 x, W4 H, J
3中断语句
+ ^' a" t1 T; y4 i" [- s( Y waituntil <condition> prio <integer expression>;
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$ }4 C, y: a. R1 S X3 F以上为常用的函数！% N7 L2 N, g2 ~9 G
还有很多，如有需要我把资料发到你邮箱里 8 N \; H3 X2 v/ L
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