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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
3 K* R. p, z, B* b9 E/ b if <condition> then x/ x& j/ c' z5 x6 ~8 ?
<statement sequence1>;
% p5 \) N1 @, x* h. g& f6 D! X elseif <condition> then
* A5 \" ?4 z) E/ b3 P' P- p3 n; ~7 Y <statement sequence2>;1 B ]) S0 j- X
else 3 ], s! V) C3 z1 I1 C
<statement sequence3>;
0 ~( [( N+ `! H5 N end;
$ Z( S$ X+ K7 c# u9 L5 b* @如果分支比较多,用:. f0 K8 M+ U+ h
inspect <expression>' h4 J* W6 [4 k8 [0 ]- h, S
when <constant_list> then+ B* Q ]5 {! q$ \: r' R
<statement sequence1>;
$ s% z6 F1 Z9 M; | when <constant_list> then
- u4 j& m$ E! d' T* P# S <statement sequence2>;1 I4 E$ q2 r& Z5 @
...- J! F- v7 S2 Q/ j
else5 m t! R) ^5 ^% P/ `* b' |. f: P
<statement sequence3>;/ @1 ?4 D- x' s# G
end;
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2循环语句
* {+ S& J3 v4 W( I (1) from <statement sequence1>
3 ?! G6 E! t( Q. _4 P until <condition> loop
$ Z3 W+ t ]4 P! I <statement sequence2>;7 j' v& ?6 V A) l
end;
: X5 y0 w' r# `) ]- g* o (2) while <condition> loop G6 A7 y0 h& v% t
<statement sequence1>;/ F _3 z# O1 W3 W( u7 |
end;) I/ T' I3 j6 k& q6 Y# x e
(3) repeat
" F- V$ G" h& m9 H <statement sequence1>;- f% K% A6 w2 V( m+ Q
until <condition>;0 i: w5 q1 _% C: R* |" g
(4) for <condition> to <condition> loop# k% i% P, c5 `* F& }: F6 V! t" f
<statement sequence1>;
! _; Q$ p3 {; l% ?2 D6 a next;
7 j& Y; L- Y2 I* V. J, [3中断语句. J& X) u- O& c) ]9 |$ D& n4 ?
waituntil <condition> prio <integer expression>;6 O3 q! {" T2 {. e; z
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以上为常用的函数!# c G' I9 z& E7 K- ?
还有很多,如有需要我把资料发到你邮箱里 0 d4 s7 _% Y0 f
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