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发表于 2012-11-13 08:48:12
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1判断语句1 c6 a0 c9 ]$ K1 e' Y6 e
if <condition> then; b w0 T# ~3 X
<statement sequence1>;
6 E5 I! U+ L8 W* R" c3 ] elseif <condition> then9 Q; z2 o! j) x' \5 A& x
<statement sequence2>;0 t6 z o! c9 m$ Z4 f
else
2 ~% K% f1 L( [7 s <statement sequence3>;( Y2 Y* c; z8 C+ ^# u
end;* Z1 @: |: N; S& G* V8 e9 c1 k# U
如果分支比较多，用：
! S U) q2 t% _( W inspect <expression>
" A9 u/ O( u( P" b- p( M when <constant_list> then3 P/ T9 O5 _+ ?8 ?5 T2 n3 i4 e# h* C
<statement sequence1>;6 Q6 J" v- t# L- L6 e' h7 V
when <constant_list> then* N' @) ^1 [ Q8 N# u# j
<statement sequence2>;
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else1 w1 @: g, q$ J# \8 ^; H# d" D* U, S
<statement sequence3>;8 [# a' r$ Q& V
end;' T5 m+ K; E0 ^# s' B7 h+ T. F% |
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2循环语句
, D. i- [) k: d (1) from <statement sequence1>
$ q& ~+ q5 L0 { until <condition> loop4 h, }% r% S! w
<statement sequence2>;
/ W) y+ R' k' |8 j' M end;
" p% T3 u. C& Z (2) while <condition> loop: j7 ^# M6 t: z- d* J# N0 }
<statement sequence1>;
) J. w+ `1 j Y# P. y: x" I end;7 k4 k, o) o; N
(3) repeat - y' g1 L- J$ k$ N
<statement sequence1>;
( K# y* z: r' L) ]/ J/ \ until <condition>;
3 W; B9 Z; f( w2 m- l" n6 x) d; e (4) for <condition> to <condition> loop8 y& _& A, u( m- q, Q: k u
<statement sequence1>;# E8 ~1 d |" T8 n z' v
next;& j4 M& s8 x$ j: z% h- C
3中断语句
; Y: r6 L) x1 x6 A; @; y2 k waituntil <condition> prio <integer expression>;' J! l4 V" x0 a# v6 }5 T
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以上为常用的函数！1 M' s4 y4 T( P2 I. D" E/ t
还有很多，如有需要我把资料发到你邮箱里
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