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发表于 2012-11-13 08:48:12
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1判断语句
. ?" a) F+ A) F' f) s& v2 d' O7 z \ if <condition> then
9 F: `( I% b( \; U. S4 P. z <statement sequence1>;
& F2 s9 B& C4 i: n' _ elseif <condition> then
i* @% v+ }7 U/ a7 ?+ l: y <statement sequence2>;
3 j) Q/ M) j! B9 L else
4 v$ z! |( D4 ~* ]! Q <statement sequence3>;
. b/ d% U. p8 } end;% S$ O$ D2 ^3 I% O
如果分支比较多,用:1 v3 U* Y+ Y [( ]
inspect <expression>* Y$ Q5 y4 x/ w' j
when <constant_list> then
8 b% f/ ^( d! {/ W+ a9 M8 y <statement sequence1>;
0 C v3 n$ B+ Y when <constant_list> then3 w8 W* p j' v, @6 ^* q3 A
<statement sequence2>;
0 {$ ? d# e9 l- e/ ^ ...
) H& P9 N( |! u. j& ]2 a; y2 ~ else
! F. }: G: x% M- A0 C" h <statement sequence3>;
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, A3 u: O0 B0 p' Q' [# k1 w+ X! F2循环语句! Z' x* K2 x# |3 `9 ~
(1) from <statement sequence1>
* a! T4 i3 X7 b& ?9 X7 { until <condition> loop/ X @# P4 b8 W* t8 z! O1 J+ ^. i
<statement sequence2>;
+ s* O" Z7 @* n: C2 A end;$ v* `9 ]) d- f; ` y2 n) L( E
(2) while <condition> loop
. ^, I N6 S5 e/ ^* ~ <statement sequence1>;2 Z) {! _; C" U6 B0 |" x" }
end;
2 y B2 q) Q5 b6 W$ B4 S (3) repeat , v% L6 C: d% d( c2 r8 V2 l
<statement sequence1>;
; ?( S4 m. m, T( s7 l8 D until <condition>;% H$ m- M& k" c1 A" `: }; x' X4 ]
(4) for <condition> to <condition> loop# D& m* B7 @7 G* ]4 }$ Z/ }
<statement sequence1>;3 ]+ o* ?/ H U9 J& g& R. t; D
next;
5 n/ E+ p' W; J+ V3中断语句
, i1 G) r/ X: [& v. R: P+ N waituntil <condition> prio <integer expression>;
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& @3 y; F! N2 S, N% G
# G; y2 v7 _5 P* @0 [' s以上为常用的函数!! U; `; ~$ R1 v4 o7 V4 u
还有很多,如有需要我把资料发到你邮箱里
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