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发表于 2012-11-13 08:48:12
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1判断语句
1 W! w9 i; S8 S# s' Q1 H5 A4 ]7 C if <condition> then
( o( Y& w! ]' j <statement sequence1>;) \5 F/ l; o7 h a. I9 f1 [
elseif <condition> then
" | d0 i7 a6 N% X" _: ] <statement sequence2>;
$ q. Z% L! E6 K+ Y else
3 [* D9 g& X- r <statement sequence3>;
0 Q% h1 t) k/ E end;
5 ]9 S% @8 D- A w% J$ t% U如果分支比较多,用:
- e9 d9 e1 ~. C2 M+ O; L8 J" N. T3 ] inspect <expression>
5 f) ~. Y4 M6 Y Y when <constant_list> then7 J3 Y) c* z7 s: A' W* W" p
<statement sequence1>;
5 Z1 b, D2 e( X, r1 R3 i3 M when <constant_list> then
) F; l- {6 b' M+ r! d <statement sequence2>;3 s( y9 Z' z! F% _ Z5 a
...0 E& E6 c% p& T; k8 d
else3 T7 b# [+ f. a
<statement sequence3>;3 f2 `3 B% |7 C
end;
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2循环语句/ P( S' T6 b+ [6 g
(1) from <statement sequence1>
4 _0 _3 U' b$ _, Q( ?" g% q until <condition> loop
- o0 p- l! }' J) p* [4 p <statement sequence2>;
& h% r% [% M5 ` u end;( c9 O4 y3 ^! V, r' d
(2) while <condition> loop( e' {6 c" b- J) G+ g2 R6 @
<statement sequence1>;2 g; d! `3 _- e) Q$ w
end;
, y8 ^* H' E' t. u( T' z (3) repeat
1 o- _ V5 t. y* D1 u# @: E, D- k7 y <statement sequence1>;
# ?) a0 D5 _- s/ n( b/ m. ^ until <condition>;
+ L# K9 `7 ~1 q q: ~6 e! R) S (4) for <condition> to <condition> loop
, F2 B& I$ j) r) l6 w4 C3 S <statement sequence1>;
) b/ J! d) c$ c next;
8 E6 n* X) I- {7 u3中断语句: a0 L5 s8 u3 o( T8 x$ M' Q6 @' Q
waituntil <condition> prio <integer expression>;
# f K) l& T, X' e7 x# C8 h5 d1 Y& r3 a4 T6 e
4 Y7 ~9 Z! s W9 p
以上为常用的函数!, E" ?" i! u7 A3 W- N( {
还有很多,如有需要我把资料发到你邮箱里 2 e7 t3 V2 J; n
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