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发表于 2012-11-13 08:48:12
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1判断语句
/ c" Y0 r0 s' I1 n) r; A if <condition> then1 m, L' u4 Z$ u/ a& W+ I" A
<statement sequence1>;
5 h" A+ r k( h2 K; y elseif <condition> then$ K* m1 _% n& y9 S8 Y' e3 F H6 V
<statement sequence2>;
; U, P4 w9 ]! \( n% m else . K2 [7 h2 Y( P; R+ k
<statement sequence3>;" z" v; ~4 w7 i% |+ r/ [
end;
! @- s! r. s: V; y% _如果分支比较多，用：5 P+ b+ t/ Y# ^9 d3 x, w, }( D
inspect <expression>% }% B( j8 m! P( l# g7 ` n
when <constant_list> then
5 o+ P, ]. B N2 f! z <statement sequence1>;4 Q7 j& E: K# K1 t& f! k
when <constant_list> then
5 k- D7 Y, K4 n2 S <statement sequence2>;
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else! T, O; m# ], t& r
<statement sequence3>;
( y. v, W* e; d5 gend;
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0 D5 T; S! c/ N' |2循环语句
& A: Z+ [% ^% ? (1) from <statement sequence1>3 o. Y% }# C' E/ d8 x, n: [
until <condition> loop4 Q" q& G: z& p, x) t a0 k
<statement sequence2>;) F3 S A" _ P& i3 \
end;# I7 X. L! f9 l
(2) while <condition> loop( n6 s7 D$ j% J% c9 U2 Q
<statement sequence1>;
" F4 x) F5 z+ n; H) W8 w3 T1 J' _ end;
# O% ~9 z" ?& G. C0 J (3) repeat e7 E/ U- c! ^* N, t S9 r; `+ R
<statement sequence1>;1 O3 t+ N/ }4 o
until <condition>;# F3 o' U" i9 O% X( _0 u
(4) for <condition> to <condition> loop
5 Q$ I2 n4 w( p8 I <statement sequence1>;
, L5 W+ U) b1 f5 ~; X x2 L next;
- x7 T/ r& F- X/ N! y3中断语句
- `/ \2 ^/ X ^ waituntil <condition> prio <integer expression>;5 B( x Y4 Y) o: Q6 r
+ r% h |6 X3 l0 [( P( w
9 r8 r1 M. G3 e3 m5 K# n* w) l* |以上为常用的函数！! v: h5 q$ I( g7 f% ?6 x
还有很多，如有需要我把资料发到你邮箱里 " w# F2 g x0 n u) a1 ~
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