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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
6 _) D1 R' w2 O& e! E- x if <condition> then
2 B, |4 J3 d1 v/ T% M <statement sequence1>;' i. {* T+ M* a+ E2 U) u
elseif <condition> then( |, r! r' } y" X% I
<statement sequence2>;& z& S; L( T% D7 w! S% y
else . O% z/ r/ b* f2 J* q
<statement sequence3>;
* k! X! S0 E2 ?% l! V end;
0 Y/ W, S2 s0 K3 \6 @4 ~- q$ ~如果分支比较多,用:( s# A/ V5 f. k: Z2 A- ^8 j6 j
inspect <expression>
R* @. F% l/ V& o8 t" v when <constant_list> then
0 n( R6 I* k! L0 m" O <statement sequence1>;! o$ T3 U w0 _5 n! L D
when <constant_list> then
5 L5 m. V' b- e2 w* c) } <statement sequence2>;
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else) e- p4 g( ]/ L. v1 r* \+ f
<statement sequence3>;
1 T e+ P( [3 K: Z7 K+ K- cend;
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' `4 P, }2 v0 _/ J4 O3 U2循环语句# J! i; D( B+ ?' f4 ~+ n" ]
(1) from <statement sequence1>/ c- A- ~4 z6 ~; E
until <condition> loop( `4 p, I }9 s4 d& Y+ C) w
<statement sequence2>;
# S' L! a# [& V7 ^( ? end;
3 q/ q& C1 ~+ ~ (2) while <condition> loop# Z: {' o, H+ S; k6 S! Q" d
<statement sequence1>;
7 ]( A% w8 F; V4 V end;0 R5 s! p$ r' r" z
(3) repeat
( }' G2 Q$ U% c9 \ <statement sequence1>;6 N) e, |" u: q" c4 ~9 m8 S
until <condition>;
( ^- p0 ~7 i5 { (4) for <condition> to <condition> loop8 @9 w" {1 Z0 h& L# N
<statement sequence1>;
U, r1 P$ V( W% h3 j9 c next;
; d* _) l7 e* G% T3中断语句/ P, S9 a$ R/ g, j* z7 B
waituntil <condition> prio <integer expression>;4 k! {# w: z" p9 a$ k
9 I. k R+ C6 n) m1 l
- X* F$ b2 {. Y8 l以上为常用的函数!
" r E- I+ K+ L/ `1 E0 y8 z& t还有很多,如有需要我把资料发到你邮箱里
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