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发表于 2012-11-13 08:48:12
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1判断语句
4 m: n* K8 x t3 S/ f) U if <condition> then
7 J0 n! A6 u) e <statement sequence1>;
" q4 H# f+ @4 Y; v elseif <condition> then
* D/ U$ u# i% R- b: Z W4 d$ { <statement sequence2>;
/ ]/ O2 @( z4 y$ k# H& X3 L else
. E" c! F7 c7 Z$ c <statement sequence3>;
5 I9 }, V" N3 w3 C# q6 B end;
) q5 y2 |1 M, C$ B, o! f" o8 |如果分支比较多，用：
/ h4 Z' o' W- B- d inspect <expression># l( J6 R8 i+ S
when <constant_list> then
1 Q8 G9 w+ I0 ]$ E/ M <statement sequence1>;: b# h/ I) r% \; g, O) D3 {( P+ J
when <constant_list> then1 C' X P! { R. \+ ~
<statement sequence2>;
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else9 y I0 h4 W4 ]2 ~% \
<statement sequence3>;+ N0 }! t$ J" k# u
end;6 {: X0 y- [4 H, {9 F. n
+ H; G! ]! q b# U5 R( k6 f2循环语句
( F) H2 W# d1 u (1) from <statement sequence1>+ l/ O6 {( q J
until <condition> loop
) D$ M& W/ _+ o+ Z# |! h0 n) _ <statement sequence2>;4 e9 k+ C5 e8 E3 D" G
end;8 r. a9 T4 J" |; f2 K7 D% w" f
(2) while <condition> loop& l/ G% D( L- f) H
<statement sequence1>;
9 g3 h% I& Z4 D" `% @ end;
' v; z% v9 _: q% K d, ` (3) repeat
) o3 S7 W& v, i6 T <statement sequence1>;
) p+ c8 X* P7 U. c until <condition>;
5 I3 ^5 C* a* v9 ~. x (4) for <condition> to <condition> loop
: s0 t4 r0 g/ y. v <statement sequence1>;
: @+ @7 E" s) O5 @7 f( }# u) c next;
( h0 k) V' e+ W$ P+ O( _3中断语句! H. R( F( B# r5 r
waituntil <condition> prio <integer expression>;" F' e) e; O* N' L% E4 i( {) W6 V" g+ P( B
/ v9 V3 Q8 F5 q- y
- {% [9 t, M, C2 Q以上为常用的函数！; ~$ g Q6 u/ p9 n3 z+ _& P) n
还有很多，如有需要我把资料发到你邮箱里 0 G) C- ~/ N8 b
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