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发表于 2012-11-13 08:48:12
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1判断语句+ J; |% F3 p/ l: j" R
if <condition> then" ^5 b/ V( @* Y$ S
<statement sequence1>;$ R) u1 n- C) {0 N1 [
elseif <condition> then
8 Y5 S2 p# J4 L8 r/ s" ^& x# C <statement sequence2>;
: [# S$ b" B: B9 P! x else
" `" h2 ^+ z o$ w <statement sequence3>;0 ^, ]. I+ I! v$ R$ _
end;6 M! S. f# x: J
如果分支比较多，用：& o+ P f9 Z& R! ~' k9 T9 @
inspect <expression>2 B% q4 j O$ I( x6 X8 |- \
when <constant_list> then {1 r; P$ L6 ]" y; o! N
<statement sequence1>;
* s; M! p% \6 G: w- ~& y when <constant_list> then
0 Y' v2 O4 h- i" ?. L3 L) { <statement sequence2>;
! o. i# Y; d* w1 b* c/ ^! ` ...
4 ]9 J/ U0 d7 W" _' ^ else
( _5 P5 Q/ ^. L: ~' p) I7 S <statement sequence3>;
: M) D: p4 \: a; O8 @end;2 R# T3 \6 Z0 o
9 k6 D1 \8 k1 j% d2循环语句4 m9 R# ]1 R& _! N+ ]
(1) from <statement sequence1>0 c, u% w# ~6 r; j, z u V
until <condition> loop' c+ j" V( Y+ k& y+ i
<statement sequence2>;3 g1 H. c1 b0 T+ q" Q1 o' @
end;
- A( K; u5 h( _ (2) while <condition> loop
+ v% e! U" y: ~# _7 _; j1 k <statement sequence1>;7 c( a/ @/ A9 E: g
end;* u- q$ I6 G# T& e3 d& n
(3) repeat $ A& J, G; m' ^9 ^/ V
<statement sequence1>;
* I5 l3 Q! I7 e& r5 S until <condition>;
+ v3 m: k1 w9 H( e* d( o/ i (4) for <condition> to <condition> loop
8 ^+ G- g* k# } U; r9 L <statement sequence1>;
8 Q8 u2 }2 u0 ` next;
: Q2 B+ c' x1 H' m+ q4 j" Y3 i3中断语句
) l/ ~7 |9 T9 O waituntil <condition> prio <integer expression>;
$ B* E+ h, v+ e$ c8 i
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以上为常用的函数！
. w, s( T1 Z- R还有很多，如有需要我把资料发到你邮箱里 ! s" K P/ o! \6 f4 b
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