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发表于 2012-11-13 08:48:12
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1判断语句1 f2 G0 }( W6 {* H* ^
if <condition> then
3 N. F% g% Q# t' ]* B/ U <statement sequence1>;+ h$ H% z" E7 v8 W4 o5 S
elseif <condition> then
0 H# d2 \5 l) _# a <statement sequence2>;. ?4 p! D" r3 j
else
, s( T9 L L% G- R+ @0 z- G! V# {: Q: D <statement sequence3>;
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如果分支比较多,用:( C! c6 o( t# H1 r& E$ C2 N* n
inspect <expression> p9 {# i1 i) k+ I7 g; f
when <constant_list> then1 s3 {) l3 o. o# B2 m+ y1 Y
<statement sequence1>;
# P7 X7 X- T# b when <constant_list> then
, Z' O6 R/ P# D+ d: I <statement sequence2>;4 ~' ~- y5 \# K+ e- u, N
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else
- n8 v. l) |! |( A. c+ e6 H <statement sequence3>;) D% [& c0 W. h- t
end;
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% ^9 O; R" H7 z6 U; J2循环语句
, G; C. a) L8 M! u (1) from <statement sequence1>
1 H Q+ y" }3 |6 h( T0 ? until <condition> loop2 x+ X7 |8 |" A- p' F
<statement sequence2>;
! d$ F% D, I: m3 V9 q end;) |& ~1 y H9 x7 k4 d
(2) while <condition> loop
, S u3 R! w# W2 J+ m <statement sequence1>;( n8 Y" x$ t4 ] f, b. N2 g+ Q
end;$ W! B6 h3 d! H) O; D+ X- D
(3) repeat 3 _8 h) {+ s8 T8 ^' k, ?
<statement sequence1>;
$ `3 B( C8 y! q4 m until <condition>;
6 q' p$ j/ O# E& ?5 D (4) for <condition> to <condition> loop
) A. F8 r) f" ~0 k* V2 V# p <statement sequence1>;
1 g) U8 E" L- y+ |& f6 C9 i next;
" P2 m# b C9 \: n/ a# X: A' Y3中断语句2 j) ~4 E* c4 N! l
waituntil <condition> prio <integer expression>;3 `; [; I- U: l. n8 D
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以上为常用的函数!
4 y/ l# e, x. m; n4 L1 f4 l* K还有很多,如有需要我把资料发到你邮箱里 & l3 f' @* F, [& |: W+ [8 r
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