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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
9 d- @- e+ |* Y% _- l if <condition> then
% S3 E8 Y8 X$ k <statement sequence1>;7 f+ [0 p4 |0 P
elseif <condition> then
1 {+ r1 B3 w! m3 ]: M <statement sequence2>;
3 i- g$ A/ R+ R% J! b else & I2 [# W- d( {# ^8 E; G) i2 X
<statement sequence3>;' X; o$ U0 N# s5 m
end;
, G( B* E% h4 E) a0 v+ d如果分支比较多,用:
( a5 ]& V2 ^3 r! F inspect <expression>
, f D5 Z* L5 L! c8 ~ when <constant_list> then
2 S/ ~+ b4 F9 D# f: ] m <statement sequence1>;
0 X Z: V, P) d when <constant_list> then
0 E+ T( t/ {, v, Y: S9 _ <statement sequence2>;2 S |8 E$ x$ |$ R$ I" A& C
...) f( Z, d( U) w
else/ O$ e- T* ]% p, {5 p
<statement sequence3>;* j3 Z9 M( p- p
end;
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2循环语句) G) }2 s: S* w
(1) from <statement sequence1>
% a* ~' i4 {9 a: e* A p2 H until <condition> loop
( q' Y5 A* q) \4 x <statement sequence2>;2 K$ R( B0 p" Y: K
end;
7 j R, _/ p5 Y! Y* L (2) while <condition> loop1 O+ c! H, n8 K2 ?) H
<statement sequence1>;
2 v5 R$ K# Z0 x7 m end;
: D e, G, p: _0 X (3) repeat ! `8 O% B7 I* t7 z
<statement sequence1>; o" `* B1 e) l' D8 q
until <condition>;
0 @5 A/ P) U( F* F9 N: ] (4) for <condition> to <condition> loop
6 H0 A m# g/ M: F x <statement sequence1>;& [& h( M8 t/ l- u7 a7 r& d! x: x
next;
, W- e; J1 _; i! H5 r3中断语句; Y: P" A% {* X
waituntil <condition> prio <integer expression>;
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) E* e$ V; @" y \
以上为常用的函数!2 p5 g' X, H$ ?! r
还有很多,如有需要我把资料发到你邮箱里
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