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发表于 2012-11-13 08:48:12
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1判断语句
" ^* v- ]( R5 ?* L5 w if <condition> then
" _% z y" q' @, D <statement sequence1>;" \ X2 v: s* ^: \ K+ f5 G% c
elseif <condition> then
" b2 T4 f/ V6 i+ A8 Y- s <statement sequence2>;
d$ V1 m9 b( u; | else 4 c, T. o* s; {3 {4 M* a
<statement sequence3>;
7 |, }! b. ?7 `( }6 c0 Q* B9 S end;
" G8 f9 o5 O- y9 N# r9 ?; c. H如果分支比较多,用:
N, @0 |( M% V& a6 M8 g" N; O6 \ inspect <expression>
, ^; t6 G& [2 V& b& `) V when <constant_list> then
; W% k. \+ S- q& L+ O <statement sequence1>;
% k% V7 x" p" Y Z' U' ~; S2 s when <constant_list> then p* j+ |5 y3 u' x9 d# @, E
<statement sequence2>;" Y4 e9 Y6 |9 w/ Z8 H
...3 U. ^: U1 }. [ T
else
* r# l8 t3 W- |0 h) X* G <statement sequence3>;. ~* c6 C% Z Z' i2 t
end;' @( ^3 x- R% j) a. Q2 E
# ]& T4 Z. d$ h4 m4 k" I8 b2循环语句
5 N0 W- H. |7 F+ W% U* A2 \ (1) from <statement sequence1>
9 C6 j, k( b9 ^ until <condition> loop
( q1 r& X# D- k( Y% M <statement sequence2>;
3 z5 G. f( Z W9 E end;5 C+ }+ d$ s( h; X. {
(2) while <condition> loop
( `& }: Q4 `; _7 [8 l; n+ W$ J: U <statement sequence1>;* }% H" m# L" l5 M
end;
7 b* @% Y! j# m9 C3 X6 v: H- K* K (3) repeat
, V: W- e9 C* s <statement sequence1>;. ]3 t+ a9 r& Q/ q+ `' O) i
until <condition>;3 z( p" }+ G* |9 [; p0 Q: m0 b: U! Q0 i
(4) for <condition> to <condition> loop2 L5 o& D) @" s( ?- G3 q9 \" R
<statement sequence1>;
6 s6 u& U" F B* N6 q2 c* } next;
" w4 E8 e3 n. D& O; Z4 h$ E2 K3中断语句
- C( e) p0 k% \( d$ ~' f, }$ S w I4 n1 x waituntil <condition> prio <integer expression>;$ e) W1 L$ g, q
4 c2 m$ B( y0 r+ U( ?, p! @. s- o& |+ | p m8 u' g
以上为常用的函数!% }1 B; {7 X) G3 b
还有很多,如有需要我把资料发到你邮箱里 : H: H( F6 M; U2 ]
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