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发表于 2012-11-13 08:48:12
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1判断语句- t. I6 n! \! [- d0 Y( ^& C8 E* y7 K# |
if <condition> then
) {( j% _9 f. a' z) e4 a5 g <statement sequence1>;* W* a$ O8 C1 C+ r
elseif <condition> then
3 o* _% H' F6 j t, f( d, @ <statement sequence2>;
, c3 Q/ t8 ^# U( ~ else
! r: z- z7 H9 }# N9 O% C" ^3 k <statement sequence3>;
^ T3 b' O4 ?: H( H3 [ end;
" |, z/ u" X# ?4 B* J如果分支比较多,用:- H3 U& j# V) d7 ~; q6 s: m- O8 }2 ^
inspect <expression>
' v1 V7 ^. ]5 S4 V% A, @ when <constant_list> then
6 N5 d- H Q# N; K <statement sequence1>;
5 D$ e: A! ]7 q3 ]) Z& k; f when <constant_list> then- V. L4 ~. z* i( j1 x7 T
<statement sequence2>;
+ p( d! }8 u& J1 l C ...
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<statement sequence3>;
; d M+ `8 [( m7 _9 o6 qend;
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3 \4 V U5 F, X; x6 c# w3 M" o2循环语句. L; d+ m) C9 U5 b$ m7 `
(1) from <statement sequence1>
( f: N; K3 o% f! _5 S- V until <condition> loop
3 D9 J9 O% E3 s/ F4 n# m/ P" J <statement sequence2>;
% d" i/ Z9 O) i end;
0 h: K5 j0 R C6 Y4 ] (2) while <condition> loop
2 y2 p; o* r0 c. H/ K1 d1 V: ^ <statement sequence1>;
; r( j# ^+ [% d7 F end;
- B( Y z' }- N# G, _& m# F (3) repeat
o3 N2 E) N+ {2 z/ Q9 |; |) s7 T <statement sequence1>;
2 }; V9 q$ S+ @3 { until <condition>;7 n7 L0 L! }! z
(4) for <condition> to <condition> loop
0 h8 @/ X$ ]7 @) U$ W <statement sequence1>;
6 l1 v' |4 v# u( Y+ m5 g+ T4 ] next;' H1 x& {5 ^1 L2 s
3中断语句7 X7 j4 A5 A4 ?" ]4 U8 e) k
waituntil <condition> prio <integer expression>;. y# V0 v; z" ]1 w. E
5 S3 |% t) q$ z- [/ z1 c* [* i: b Z, N' R- [2 F
以上为常用的函数!
( v m6 v' \; V还有很多,如有需要我把资料发到你邮箱里
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