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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
+ @ A6 i, P+ b: ?0 i9 L7 a if <condition> then
. d5 }- M9 ?2 d+ l4 ]! X9 Q3 ^/ G <statement sequence1>;
e+ Y/ P+ w# M8 ]- i$ y elseif <condition> then; b. a) U% r1 V3 g' h, J8 w9 D
<statement sequence2>;
. x/ G" f' ]( c else 1 i7 y. h" Q7 Q* _/ b6 ~
<statement sequence3>;) y$ W: s' g6 \/ b) v' P
end;
2 I r2 \' Z0 Q+ \如果分支比较多,用:2 l$ U0 x; O' Y# _1 u4 g: a; H* ]- f3 M
inspect <expression>8 g, B8 J/ E9 N/ t8 e
when <constant_list> then" z# L7 Z- k+ y. b) D/ S9 Q
<statement sequence1>;. g# v# Y9 X; o5 v
when <constant_list> then
* S0 U3 ]& K/ ? R <statement sequence2>;
: E/ ^% R+ B0 g! I) \. @ ...
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<statement sequence3>;2 |$ o6 y7 M' N4 h% p( i
end;% D5 ^; n/ e0 V2 u
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2循环语句
0 @( K# U0 Y9 g (1) from <statement sequence1>4 J. K2 E9 i, `
until <condition> loop
0 F# ]# ]2 D" y/ n9 P2 W% g <statement sequence2>; ]: Z. ^" T$ E
end;! L/ ^; s0 U8 ^. A& W
(2) while <condition> loop! \7 b f& X9 D2 \
<statement sequence1>;/ t3 M; [. p) v, [$ G/ x; B, _
end;
# q) m7 Y- ?1 V! b+ \* } (3) repeat " j4 |7 j+ ]+ u
<statement sequence1>;* @, R1 |$ Y) s. b
until <condition>;7 g6 @6 D/ R( v+ w) x
(4) for <condition> to <condition> loop8 v$ O; s8 ?' F
<statement sequence1>;' Z. Y, U' t# ?
next;
% t/ B/ `7 r2 P5 [% J. r3中断语句
% ?) E h! Q# o7 ~: V; K, N$ w waituntil <condition> prio <integer expression>;7 B. L4 {# b% Y) b3 ~! r. m& k/ n
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以上为常用的函数! B# o0 O. L9 M' Z/ j# J, M; ~4 {
还有很多,如有需要我把资料发到你邮箱里
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