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发表于 2012-11-13 08:48:12
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1判断语句$ m# K! I5 x8 T4 r6 x
if <condition> then
& i- F) C- Q3 R; _* Q; _ <statement sequence1>;
0 Z Y# Z) h0 t2 v1 ^/ C elseif <condition> then" K1 w3 a/ E1 y7 T7 k+ y
<statement sequence2>;2 p \6 f* c- [
else
1 X/ L3 d7 z& T) ~9 A! P <statement sequence3>;# |4 k* \& y$ m6 `8 X
end;
7 p7 X* e4 ?- Y3 |' Q如果分支比较多,用:0 ]/ S' ]9 `% }- \
inspect <expression>
* W, v: P( G4 y) J0 [* o( G when <constant_list> then
( r$ y& k, ?# U0 n. s! b T: ` <statement sequence1>;
7 I( o# A! U7 j when <constant_list> then
" l% a) D# ^: K3 ~2 |3 O <statement sequence2>;
: X; t- T4 a& H ...
2 k( [: [# }9 I2 C, q' F' }: Q2 h else
" C0 Y4 @8 J0 {9 D, g- ^ <statement sequence3>;* B4 t, I# m' J) t8 f, g8 L
end;( |1 ]" m$ ?) o. a2 a
6 k0 ?5 t) C* I+ U9 }4 r2循环语句
/ ?' l/ b/ [. Z. ?2 e, I (1) from <statement sequence1>
1 l8 F5 t! A/ ]6 u/ [ until <condition> loop
" F4 K8 q3 ?4 Z1 H9 D7 U <statement sequence2>;
0 X. U! ~; X2 W- c: `# P end;
$ g! C& f5 [- m0 f& V (2) while <condition> loop
9 B. T4 x5 e& [" F <statement sequence1>;, }1 z% K& t, y$ y! ]
end;
- c U1 C" \( f (3) repeat
3 `; I+ @0 o# e9 U <statement sequence1>;
" d1 N/ k# z- K until <condition>; G: B b/ ^ a
(4) for <condition> to <condition> loop
9 |* z" w; m) m; [ <statement sequence1>;
- F$ q, H8 @' G, W0 _' h: C/ F7 a next;" {5 Q0 C5 g2 y2 ? H: m
3中断语句+ t* K: k& T" [; k
waituntil <condition> prio <integer expression>;
$ \ \) T4 X3 {' g
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以上为常用的函数!
! c& q' ~; Y! C8 y还有很多,如有需要我把资料发到你邮箱里
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