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发表于 2012-11-13 08:48:12
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1判断语句1 N9 b s7 T( S
if <condition> then
1 `2 b N( T1 i1 p' o <statement sequence1>;( V! j* c' X5 I! Z7 J- d
elseif <condition> then
' a$ p) N" H8 F <statement sequence2>; l3 G/ D5 _2 `2 K
else : p0 k3 \# O7 b( x/ i
<statement sequence3>;
8 f& X, a. j/ z( |. L end;
/ J" ?! E* `' \! A如果分支比较多,用:
% ?! s3 F( G0 I# W3 b inspect <expression>, |2 y/ @8 B; f2 g+ C9 I
when <constant_list> then
: N% a1 m2 L! e, G' M2 l% Q <statement sequence1>;
' w( C& `, w0 s! h when <constant_list> then
. N g) b/ x2 u7 Q8 e9 K" e# r <statement sequence2>;
p# S% z# t: q, _5 f1 {) P! `, ^7 E ...
( F0 I1 ?. g: ]' b& S% S else
9 g, C& x1 ]0 o1 ^# q* `! M <statement sequence3>;8 h0 }1 G* E5 E2 e0 V3 | Y+ H/ Q
end;
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) r7 Q/ l: H+ L o" i% ?2循环语句
6 h+ H1 y3 K$ B& x2 R, j (1) from <statement sequence1>
: q# h7 N3 W3 N+ {+ h until <condition> loop- ^( V! T$ g5 @- O5 u& t, i( z( Q$ q
<statement sequence2>;, x5 C C, u* c1 a- J) r1 R
end;
! M7 `6 l% M" M* a* M! U, J/ A" k (2) while <condition> loop2 b4 \8 J& }8 y% j* h b
<statement sequence1>;
: e( ^$ K7 |5 x" ^; _- \/ i! T% O3 m+ v5 _ end;
3 L$ n$ H0 A6 b" C5 H! P (3) repeat
$ ?$ s) O# ]. y <statement sequence1>;& s: D o3 F+ ?% z9 x1 j
until <condition>;
( g5 x! T) j- h8 u8 b& n5 e (4) for <condition> to <condition> loop
: `8 O1 P* p7 w5 Z8 C <statement sequence1>;" Z0 W2 y! g2 R& N* N1 u
next;% S+ X! P6 K) Y4 F( e
3中断语句' u/ [2 C. F/ t2 _* F: a* t
waituntil <condition> prio <integer expression>;4 H# ? G0 o E# s+ L" m7 s
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0 W3 a* U ~! h q1 f2 W/ ]& @以上为常用的函数!/ U' w, y4 c G
还有很多,如有需要我把资料发到你邮箱里
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