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发表于 2012-11-13 08:48:12
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1判断语句1 \' `, o1 _7 T7 O
if <condition> then* E2 t/ |; |4 q
<statement sequence1>;! ^& u2 w9 i* Q7 c9 u n1 `
elseif <condition> then
1 m/ c8 |2 N2 A& E6 o9 r <statement sequence2>;
- h# ]) t4 I, S else
u# U9 A) q: e6 Y <statement sequence3>;
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如果分支比较多,用:
; o/ a) n1 V3 a: c( U inspect <expression>$ `/ o7 v. U9 a. m: C2 U0 W
when <constant_list> then
_- }( C# T# \& Q <statement sequence1>;
, d2 R! l& H. f when <constant_list> then5 l9 t1 t! u" v m% X- c
<statement sequence2>;5 _; Z# C/ J( s/ f- n- _( @
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else. F8 g! }0 N+ n; P$ {
<statement sequence3>;, g" l" ?2 S7 A/ J& A/ T" a
end;/ v% N, q: O" u7 {# y5 J
6 f/ T8 B4 I, F3 |2 P8 V: f; }: b2循环语句
# z- m1 H0 [0 t. L- X0 s+ B (1) from <statement sequence1>
" s! F" Q5 q9 b6 B T until <condition> loop9 j% D0 v: @, Z) `6 c
<statement sequence2>;
4 X. Z( K! G. J end;
3 D0 o% @& I6 F$ n (2) while <condition> loop9 E/ W) d3 W: G" U# n
<statement sequence1>;
g! E, I$ f# N- W5 B end;8 J: ~9 @6 Z- p- q' ]( K, P8 [* @
(3) repeat 1 H8 j: W6 F' U U5 f$ U
<statement sequence1>; N8 @2 O1 Z# u6 P: u l, s1 b& k6 m
until <condition>;% o) O* w1 l9 D+ F* [0 Q. O
(4) for <condition> to <condition> loop
0 D+ L/ `1 D" ^3 q) ^+ F* @ <statement sequence1>;5 ]8 M h9 z* Z$ O# T$ ?
next;6 y& o- y' ^( C; I5 J- ]! [
3中断语句
% P2 D* ^. s+ V: G waituntil <condition> prio <integer expression>;
/ e; P: t$ S* O
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# Z: g# U6 k b& ?9 T: c+ y以上为常用的函数!3 i# r0 x, K! @2 [/ u$ w \5 y1 x
还有很多,如有需要我把资料发到你邮箱里
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