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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
) V% N' E2 T; C( s, ?3 ]9 {; |+ O if <condition> then: h8 Q. X0 b6 C5 e1 J
<statement sequence1>;0 E; F: ] L$ |7 g+ N% z
elseif <condition> then) ~# R) Q9 u) k4 `
<statement sequence2>;
, l H: k) o0 V+ x' Y else
2 Q- G% z; q5 k* @% j7 v% W <statement sequence3>;
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如果分支比较多，用：
& I: ~6 ~1 O2 I) ~3 K/ @ inspect <expression>! m9 @7 ~6 R. g: S- j# f
when <constant_list> then& e( a& V) X' g8 z& G! {$ ^: Z) G( M: x
<statement sequence1>;& C0 Z( z/ `" y8 ^) O; V6 s
when <constant_list> then( a S9 j' u, X, o5 `- f5 z( y
<statement sequence2>;; w) q1 r% t( V; ~5 L# M) H
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else( g# d5 K; @8 y
<statement sequence3>;# P f! V1 S$ \1 s
end;* u" r8 N5 q2 |
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2循环语句4 f) C9 L2 Z6 B% C9 d3 ~
(1) from <statement sequence1>
* h+ ]+ s0 K8 ?, l" S8 u until <condition> loop( N; J/ d7 z$ y( f
<statement sequence2>;- e7 O3 O) R! d& K- A
end;
! \. d! n+ N$ z( H6 V (2) while <condition> loop) H! D$ d% z4 t
<statement sequence1>;
3 {/ a7 w6 w: G) P/ O end;
/ [& Q( c$ _, y. g: @ (3) repeat # t9 E; d6 o+ B% S. W
<statement sequence1>;
8 T( T! H% D7 J5 n) Y3 u4 F5 B until <condition>;
: z7 q0 n/ m. H& a, ]. o (4) for <condition> to <condition> loop2 E& {! E0 }. k1 N& f% h2 D+ N; p6 X
<statement sequence1>;
* }& U8 \% d: j0 c6 L2 L3 A; U6 I0 [" @ next;1 |; b9 H- i4 D$ R( v9 G" \
3中断语句
2 o& Q' A* i2 P& y) p waituntil <condition> prio <integer expression>;7 B9 S4 o2 C/ q2 f/ H" K. d/ ]
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以上为常用的函数！
- U% q k* Z3 L% y& A还有很多，如有需要我把资料发到你邮箱里 6 B5 `4 C4 Z& |, z. e5 I
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