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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
& O4 _; }$ o" S# m$ V' C$ S if <condition> then$ U: K6 `3 x: ~/ |. Y5 x
<statement sequence1>;1 b+ @& `1 H& A" i- o' {
elseif <condition> then
. x% F7 a& k9 g& }5 ^ <statement sequence2>;
" W3 ]% }+ {+ |# k else
c1 ?. M' d& k; x: q. c: L) S- C: C <statement sequence3>;0 ]" m& Y- w$ O) p) e
end;
6 t! l2 c* `+ r如果分支比较多,用:: L4 L1 s1 } f( f
inspect <expression>
5 ^ i# {% N( E7 q when <constant_list> then4 w* N; F/ U' T c9 S: b$ @8 K- v
<statement sequence1>;
8 y( \) ^9 G" G A& K8 x: E) X when <constant_list> then
4 y7 E* D: a6 L <statement sequence2>;
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else
" \9 N( V* v! A4 R <statement sequence3>;8 H% W% P( p% \
end;
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: i1 }5 M, }- ^" J7 \ (1) from <statement sequence1>
1 w$ v: Q0 K& k; c until <condition> loop* \, q6 x* k# N! `
<statement sequence2>;$ h0 h# f" A4 q; b I( t* @+ j
end;
& u/ W& t3 Y3 y8 L (2) while <condition> loop' x8 h b; M/ A) P4 R1 _$ h6 [ H3 ]
<statement sequence1>;
, c) ^/ X. M: d Y8 m end;
" J g8 q9 k. `: [7 K {7 D (3) repeat / X% t* G# o( r, E( \- y5 q' V1 I
<statement sequence1>;
( t4 n- k* U# B1 y( v* L until <condition>;3 T0 D# q, J8 u2 s
(4) for <condition> to <condition> loop( t& D* ?7 ?1 W6 a6 E) Y+ _
<statement sequence1>;
, k0 C5 I& Z E% i+ J$ O- f: k2 [ next; R0 c& L4 {3 F) D3 r& Q
3中断语句
X7 u+ Y0 @5 L( H4 u9 ~ h waituntil <condition> prio <integer expression>;8 r4 B* q' _7 A9 O8 J- H# _7 }
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, ~2 O4 G5 Q, E- v以上为常用的函数!
- y5 }( Z z: s' N还有很多,如有需要我把资料发到你邮箱里
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