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发表于 2012-11-13 08:48:12
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1判断语句+ O' t4 K' M( A F
if <condition> then
h; L2 x- ^ }8 k/ b$ b6 j E <statement sequence1>;5 {) }4 }8 K1 E1 ?3 J6 c! `7 c
elseif <condition> then, E! n! f& w& X6 S& p7 s. }
<statement sequence2>;
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! _- j8 G9 d& E c$ [ <statement sequence3>;
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如果分支比较多，用：
U# _$ W: @) d: Y" {9 L {4 _ inspect <expression>
e* u$ l2 l. j' C, B when <constant_list> then a0 @9 ` a; j5 k! b! v
<statement sequence1>;
* B9 w: d; _* U t4 D when <constant_list> then% B; Y" g$ R+ u0 p+ f) g8 b/ T
<statement sequence2>;1 q$ p1 x1 Z1 _; {9 h- u
...
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<statement sequence3>;. [. s! s+ D2 k$ Q% t8 ? |) ~
end;
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5 N5 h6 S: M) V4 f# g6 \2循环语句1 _! o! T0 B, ]2 i
(1) from <statement sequence1>
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5 {" K4 O. G. X* d# A <statement sequence2>;
) } h; a" C- V; k9 m: x) z% z end;
% C. `+ B, p1 z$ U0 E( ~: U- w" p (2) while <condition> loop
# p. W3 f4 S: `; B4 R <statement sequence1>;* v: Y; s; E' L
end;( t" \! n2 N- h3 i9 J3 ?
(3) repeat ! `% O2 n; E4 F1 H
<statement sequence1>;
/ r& u/ \# l4 {3 A5 k until <condition>;
* {) u, m3 u( u2 Q (4) for <condition> to <condition> loop
0 D8 S! a/ k7 a1 I! M Q! | <statement sequence1>;& V; G' a& \2 D
next;3 s8 _7 g4 p7 l
3中断语句6 Q2 ^9 j. Z" n2 v
waituntil <condition> prio <integer expression>;
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9 r, x0 R3 _, ?以上为常用的函数！$ q0 ^, T* {2 c, q* N3 Z
还有很多，如有需要我把资料发到你邮箱里 + z; @. W8 q; S: J
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