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发表于 2012-11-13 08:48:12
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1判断语句
: X8 n" U( h; Y$ E, C if <condition> then( T. x1 |' f+ R6 U
<statement sequence1>;/ v/ w, m7 v& g/ | c2 G ^
elseif <condition> then+ Z% G4 `% o+ h2 j, c; |' z2 V7 [
<statement sequence2>;' }( m8 x1 j8 c+ U" G
else ; Z1 ~# C8 M- t2 l8 @ w$ i; N
<statement sequence3>;3 D3 ]9 a/ u0 n' J; g, ^( l8 u
end;, h& M2 I9 T+ s8 _% V/ D
如果分支比较多，用：
6 P2 v K) P' u2 G" f) v/ ~+ Z inspect <expression>
$ V) h/ f2 I8 j* E when <constant_list> then
* P( n) [7 i m1 ]& Y' y <statement sequence1>;
) d1 b# [9 f Q4 _ when <constant_list> then
! y' X5 ^ D V. y0 Q <statement sequence2>;8 T3 `5 u5 W% P* q" |# x
...
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<statement sequence3>;
' } N/ X' C3 O* A" m5 Dend;* D2 r" p/ O9 v V1 W1 ?
6 X" j2 O; U' ]* \2循环语句1 y9 u b; v, }# F% |
(1) from <statement sequence1>
+ b4 \! g! _& y* U9 v until <condition> loop; g" n, W* @# ?
<statement sequence2>;# m; Z$ U' O4 {3 r5 h9 b: B
end;
& I* V3 i7 ~7 Q (2) while <condition> loop( k/ [$ [( T0 a
<statement sequence1>;
# _3 e( i' L$ u) N end;7 j, Z+ S* r/ ^, c
(3) repeat
, F- n u3 [# j( g8 m# M3 ?. e7 z <statement sequence1>;" y% | K9 J, ~4 C" f
until <condition>;
- X$ B" x1 y8 A( W$ r4 ^ (4) for <condition> to <condition> loop
* n- Z8 n$ O% U' @8 O, K <statement sequence1>;# A R4 K9 m& F- S2 L+ P
next;
5 [7 A' s/ U+ X: `& S5 ]0 [ K3中断语句8 X* Z* [3 T/ O
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
. @7 R& Y. U2 o* [还有很多，如有需要我把资料发到你邮箱里
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