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发表于 2012-11-13 08:48:12
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1判断语句
( s. _& p( o; t, C; A if <condition> then( U$ E( x. H: L! O6 b
<statement sequence1>;7 E' t; u! @, _6 N. C7 D
elseif <condition> then' i, C1 e8 S$ ]2 r
<statement sequence2>;
+ \; `/ k3 P" M' P; T5 y: g else $ c: k0 v6 W# C( L
<statement sequence3>;
& q, \# [5 e: ] end;
$ Q! B; t. ^$ v3 L* A9 F如果分支比较多，用：
0 x* e5 {# |1 a5 s" V+ L% i inspect <expression>
: A, A% M, p6 @: J6 A3 K1 | when <constant_list> then
5 A! b" r( u8 G, j5 E <statement sequence1>;( E1 v A. {9 G
when <constant_list> then, i7 h0 W# S6 L4 k( W
<statement sequence2>;" U# _" I4 ?" M, E: S2 ^
...
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<statement sequence3>;6 V, o6 y8 U O( B* l
end;
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& u6 y' }* U5 C! H# O0 w u, E2循环语句* N3 _$ W2 p7 B" @6 E+ K
(1) from <statement sequence1>
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<statement sequence2>;: r! O* U2 @ Z$ E
end;4 D9 e- f" \3 M9 b: ], e; Q2 j
(2) while <condition> loop
$ |+ N' ?, p& a6 |3 S: r' ?& ` <statement sequence1>;4 |* h0 @. b. K/ x7 R$ V
end;
, r( e- l o/ l8 X/ C/ l( G (3) repeat . o/ c2 H2 ~3 ^
<statement sequence1>;
, [2 k! e p) `; j9 `% G+ g) m until <condition>;. w4 X' D& n5 k+ k: l
(4) for <condition> to <condition> loop
/ T5 D3 a0 I O& M3 p/ j6 u <statement sequence1>;
- @: s+ s. M2 j1 V1 w2 ` next;
& Z% ]9 L6 m& Z3 p3中断语句
( C" R) t2 v& }" } waituntil <condition> prio <integer expression>;9 G$ z" `$ L e: {' k
& \! R! T' n: d: [/ p
- x5 q1 ~" O' T3 |7 T1 p
以上为常用的函数！
0 }4 P3 x! B. p4 G7 N( l, d* J还有很多，如有需要我把资料发到你邮箱里 / Z5 m- b& [. f8 a; I9 P& J
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