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发表于 2012-11-13 08:48:12
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1判断语句. h2 Y6 a2 @0 z- Y6 q Y) p
if <condition> then2 y8 ^; Y6 A' e9 S9 t# N0 r; A
<statement sequence1>;, u# k D; ?) W
elseif <condition> then
2 h7 _/ X' m9 U$ D <statement sequence2>;
; q Y% M+ ~3 ]7 z/ Y+ X else
1 o2 O! _4 i! H4 @ <statement sequence3>;5 E. [, `- M3 m3 u7 Y5 ~
end;
/ ?4 G. b5 H! E4 D3 h3 N/ e6 |' b如果分支比较多，用：
+ S# E7 [/ |: J$ C J inspect <expression>
6 q2 }' W& Y% l# r when <constant_list> then
- p. @/ p. Z$ ]% J* I$ ~. J <statement sequence1>;
1 D6 m' c! z4 _1 z- a when <constant_list> then
% n$ r7 W) N/ { {, N <statement sequence2>;
6 p. S& C$ i: H: ]1 y ...
) j4 t: f9 V" R else
- P$ k2 ~$ L) F8 H: A <statement sequence3>;6 e) Y( l7 c- e6 W- x
end;
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2循环语句# s6 z6 p- y3 e3 b- I
(1) from <statement sequence1>( a G1 ~+ B; b+ y* m* L5 X
until <condition> loop
( f' Q# j9 D2 W( _ <statement sequence2>;
; M9 J9 K1 H, u* a( C( C end;
. t) r. A; B1 Z4 k8 C (2) while <condition> loop
% w* N! d' B( n8 g- T <statement sequence1>;
4 F- E! ?: C7 y, `8 y. L end;
2 }$ ~: x2 ?, f9 j8 n L2 H, \2 e (3) repeat
, v$ g+ y6 v2 e, _$ d <statement sequence1>; w! k" h2 a c: K. T
until <condition>;
' C3 }; b N* E (4) for <condition> to <condition> loop* |. P$ R+ T: M% B0 B* }
<statement sequence1>;
+ R/ q. n3 `( m, q next;
$ e9 y7 B1 A1 _" S5 D3中断语句3 {. B/ `+ g, g. |+ T
waituntil <condition> prio <integer expression>;
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以上为常用的函数！, c4 d# V4 P# c; `
还有很多，如有需要我把资料发到你邮箱里 2 A. [* ~7 U6 h% s! e) a0 l9 C k
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