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发表于 2012-11-13 08:48:12
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1判断语句- ?. {5 u0 r' u) W4 O
if <condition> then
7 Y" f# [+ ?% B! J% N" a( o <statement sequence1>;
. F) [, @" X0 q/ s; | elseif <condition> then
( L. N& b- o, n9 \$ f* }$ \ <statement sequence2>;, [# W1 c* \7 t5 z
else , ?+ C" E0 C3 F E W
<statement sequence3>;
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如果分支比较多,用:! b' _: J6 ~: j" m. n# M# q! d
inspect <expression>
( s; u0 R- |) S( w6 t8 z( q% H when <constant_list> then
; V- O& s" `7 f( x <statement sequence1>;' }- e8 \( E y0 } Q# m; X
when <constant_list> then7 x( `- z- y9 H" `* l
<statement sequence2>;- U7 [5 c; C) e
...
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<statement sequence3>;
4 g6 o% b5 A3 C. Iend;
+ l. S0 a% ?9 n0 K. Q* V( }5 X& T
4 ~( f: P% D& H+ }2循环语句
) S1 Y1 y5 u) d, ^ (1) from <statement sequence1>2 ~8 F# c* f8 X
until <condition> loop# p/ }+ e' K$ Z3 i& D! X- ?+ j
<statement sequence2>;
) \1 h, T) D" A/ H' X8 U end;
$ s( R6 o$ e9 r# m* w (2) while <condition> loop$ {! s2 c5 M" ]% D8 p, T% w
<statement sequence1>;& U5 ^, S: f- q* V8 J9 `
end;( B) m5 T1 c o
(3) repeat - c$ g5 p+ n2 E1 W- C1 l
<statement sequence1>;7 F# \2 d* [/ \; U5 s4 F. S
until <condition>;3 D( M; H7 l3 e
(4) for <condition> to <condition> loop/ ~8 g! z- @3 x) S; x
<statement sequence1>;
, H3 I& R" k' y next;
. P2 ^( B4 ?: ?. C6 P* |3中断语句+ E) h: k8 G9 h. W$ H6 F+ S
waituntil <condition> prio <integer expression>;; M$ b& t$ v) a1 ^5 P
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以上为常用的函数!
5 D4 c1 m+ @; L- s# R还有很多,如有需要我把资料发到你邮箱里 0 P# C$ k0 k! M7 P9 O4 x
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