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发表于 2012-11-13 08:48:12
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1判断语句2 F7 j/ k: K) r& u) p
if <condition> then
/ e- g$ [& n; U9 n* a <statement sequence1>;; [& i0 {* q" r/ h) m
elseif <condition> then/ S$ ~: d' {4 W" l8 n, |; D
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:
+ p* x! K% }0 K& ~# | inspect <expression>
% U! H' c$ @! b! |6 J when <constant_list> then
. y$ a) [5 m g4 i) ]5 H0 ] <statement sequence1>;( X# u+ [9 d$ ^5 ~: `7 v' F
when <constant_list> then
0 A$ S _% f3 M* ^ <statement sequence2>;3 U4 \% d& _5 Z9 T/ f
...
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<statement sequence3>;
. S; ~" N: H" g$ ?end;
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2循环语句9 K& b. |' s) M1 t# r& ]
(1) from <statement sequence1>
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3 p0 A' t" M! u, K5 ^& w+ }) t: | <statement sequence2>;
0 G) M; i1 ^; x& \$ g end;
" J5 a0 q1 Y3 S7 c# J8 w (2) while <condition> loop
) p7 F$ S4 S. c# ?1 f! v <statement sequence1>;
% Z: O2 i+ D5 y) ~; Q1 j9 A# ` end;9 s- C7 ?3 a) J. ?9 X
(3) repeat
) U8 y L: b9 Q! N7 ^3 ? <statement sequence1>;4 D. R+ c" u1 [( y2 c+ q$ F- g
until <condition>;. E- @+ G* h6 e7 r
(4) for <condition> to <condition> loop
( s0 H X$ j( F R% F <statement sequence1>;
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3中断语句
2 t, }2 o* S, f* G I/ u8 Q waituntil <condition> prio <integer expression>;( f9 K5 l/ ^1 v+ q4 g9 e
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以上为常用的函数!: R5 [* _, C/ c
还有很多,如有需要我把资料发到你邮箱里 ; @& f* T* P1 G; b* i: j( ^! h/ Z
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