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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. c4 R; F! z4 H% g
if <condition> then( Y6 X& o# a4 w
<statement sequence1>;& ?. n$ @6 v6 V1 F$ v
elseif <condition> then' {; h* s k& U- e1 B9 s
<statement sequence2>;
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<statement sequence3>;
! {+ l0 ~: T. F2 O: I. k end;' b$ ^% ?# I3 c
如果分支比较多,用:
7 f! g- u, m5 s" { inspect <expression>& i/ e# j) g: I( f, ]
when <constant_list> then$ y$ ?( y' y; r! v; D, h2 e* p
<statement sequence1>;% t! b0 o0 w6 c' ^3 H, @
when <constant_list> then
- r4 `( c) y1 _: V( Y <statement sequence2>;1 m& Y( C: N: t6 B# m7 {
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else
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end; Z% C& {/ ~' p& S0 N. U0 P
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2循环语句
7 k! J6 K7 s, }8 N- x, d (1) from <statement sequence1>
3 p6 a& ~# j' `. {/ n until <condition> loop: R& [, H# A2 P+ I: [3 f$ m7 y) O
<statement sequence2>;
$ r( u' z8 V1 } end;
+ G# R( F* m: U, d0 X4 ^" K) z! Y4 a (2) while <condition> loop5 [$ V J0 k( Y6 u6 ]+ ~9 e
<statement sequence1>;3 }5 x; ~; Q9 s3 Q, C( N5 Q3 T, H
end;
5 M$ @! ^% S3 S/ r) Z! O. ` (3) repeat
% ^0 z* i2 |& U: v% z1 w <statement sequence1>;3 L5 D, g: G9 i
until <condition>;
# D2 W5 c- |) C+ \; a* V8 J (4) for <condition> to <condition> loop
4 j; z" Q4 j! X% m K <statement sequence1>;: L5 q. {* t1 s* U
next;
/ g& r0 p+ f6 Z9 a; p5 v3 z3中断语句
! M5 i6 \ F! N$ ?% v5 N8 g& V1 F waituntil <condition> prio <integer expression>;
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以上为常用的函数!, w9 X2 I9 ^$ E1 S3 d
还有很多,如有需要我把资料发到你邮箱里
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