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发表于 2012-11-13 08:48:12
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1判断语句
& O( F6 i6 A- w2 v# u if <condition> then
6 d- |% P3 z Y' T) O <statement sequence1>;! ^7 S! \+ j2 _% `$ S. j0 V
elseif <condition> then
) ^2 e1 g5 e$ n+ V. L <statement sequence2>;
' `8 z/ v( z: K else
+ }+ F( V/ h& {" x* P$ v- D& U, v <statement sequence3>;
! p1 w3 @2 m$ Q) H9 J end;
H( o* g- K" e' @& x如果分支比较多，用：% j& m" {* O; }
inspect <expression>) B2 q: u e! B+ s
when <constant_list> then
3 e1 { Z1 J* m3 G% c, @# c <statement sequence1>; h6 e) W5 N" F$ y( p% K
when <constant_list> then- Z" ]) z# L' H6 D3 f
<statement sequence2>;0 }1 x6 p0 E! [
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else
2 C" T1 Z2 V% B/ [- K% C" s* I <statement sequence3>;
7 x8 w5 _( O9 `/ H3 q3 P/ kend;
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1 v* |- F" H1 M+ b! t6 i: i( p2循环语句2 x8 f$ Q! |0 N: q! r; g
(1) from <statement sequence1>
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<statement sequence2>; q: U6 Z m. F5 [4 X# k, Z
end;9 \/ @3 ?9 b* j( v& s
(2) while <condition> loop
+ t) C. y0 ?) m9 X <statement sequence1>;
* q. `3 K: z2 R* D0 X end;' }7 V+ H9 j) h
(3) repeat
" k# J' g7 I! _) ] <statement sequence1>;
' o8 l9 B8 r2 b3 k% q until <condition>;
% H' ]3 k$ k' C" V# q* M (4) for <condition> to <condition> loop
, [! w- q) v( ]# U7 y <statement sequence1>;
7 [; a1 J' D& z. E$ ]7 M- s9 o next;* [3 I+ }& N. V( T4 x
3中断语句; a% g3 @( h- h2 A7 O
waituntil <condition> prio <integer expression>;2 |: _4 y, ?4 ~: [3 E; j' i w+ `
3 o: |& A5 W. h+ p+ V" p
! r3 g6 I! i5 ^4 j, f1 w以上为常用的函数！& ?: [( `- N! K4 \ u
还有很多，如有需要我把资料发到你邮箱里 - I- s' S" M, J- C, U$ n
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