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发表于 2012-11-13 08:48:12
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1判断语句! T' t2 ^. h a" K* {+ m- ~
if <condition> then
4 C0 D. F9 m* J: {# ^# u0 m <statement sequence1>;, I. W/ c) [* \
elseif <condition> then
/ B& k' J2 r( c) D# g5 K <statement sequence2>;. x- q, `1 D* [! s3 c; j9 @/ c! K: n
else 4 v& b! ^- k! z5 J
<statement sequence3>;7 X+ D3 _% W8 w4 m; |1 \: ]7 L
end;
x: j1 ~: C. F5 ~$ A* ]+ M如果分支比较多,用:
7 z/ u; Q8 z( X4 m- s3 {7 z* G inspect <expression>
9 k2 J0 y4 I" m' F) s+ S& Y9 _ when <constant_list> then
- v' C9 S8 `2 {, q" R3 ?1 L <statement sequence1>;
l6 V& |3 _; H A4 l when <constant_list> then
( q& o# e6 w. b8 ~, H1 G <statement sequence2>;, S: Y" T% w; D: w s
...
0 R5 e R& Y8 _2 k( { else
Q( T9 d# h/ S <statement sequence3>;
) C9 w1 }5 y1 K' U6 |% kend;( z" E' v' J& M( |
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2循环语句, N& h% Z) J/ k. _
(1) from <statement sequence1>
5 i4 E U- k+ ~ until <condition> loop% J8 S; {* \5 x( \) `! v
<statement sequence2>;/ A6 ^8 m- p( S" d7 m
end;
# ^; e- z6 d+ j (2) while <condition> loop. L0 x- f% Y6 t6 |, ]$ {" k) s
<statement sequence1>;6 y! i' c) @8 J1 z0 D4 [
end;
3 s3 c1 f' Z0 ]1 u! r4 e' I* Z& P (3) repeat
1 i6 A- y, _2 q; H! d, k <statement sequence1>;' n4 u( K- E2 f! A' `5 W
until <condition>;9 o2 y2 A$ g+ d4 T# E4 Z+ z
(4) for <condition> to <condition> loop
8 x: k0 w& h$ }) l6 \2 l, R <statement sequence1>;
6 {! ?! h0 m1 ~' N- Z next;
8 A- G: _. d1 C1 K/ Z0 g+ W3中断语句8 L* P6 a+ W! K7 D/ ^: G4 b, ~; V
waituntil <condition> prio <integer expression>;
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' b9 J- ~" ?" e! X4 H以上为常用的函数!( h/ Y& B- S# d) I0 C2 E' u* R
还有很多,如有需要我把资料发到你邮箱里
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