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发表于 2012-11-13 08:48:12
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1判断语句4 l$ G3 x! l% ?) h/ d2 N; z
if <condition> then
% E- j( h3 A6 o3 \3 S! X8 j/ j <statement sequence1>;( f: b2 _, I# H$ _0 e7 R1 s
elseif <condition> then6 `8 z; p3 H$ D# S4 Y& W& T
<statement sequence2>;# p8 d3 G; D% X( |# B: ^1 `' Z
else
9 G' F3 y4 h; k+ i7 s" W! i <statement sequence3>;
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如果分支比较多,用:+ b! @! n% L, m
inspect <expression>) [; I8 z0 n- Y) f! [6 l0 j* J- k
when <constant_list> then
6 G+ }( |/ k& I <statement sequence1>;
5 }, s' I( M. d, {7 Z0 | when <constant_list> then, ]" R, M8 t B9 d4 d
<statement sequence2>;, B$ L& d1 S8 M
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else0 K, j& R6 W: p1 F9 o, N. S
<statement sequence3>;
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+ D; _( ]. W/ s' j( f2 ^) d7 Z7 Z2循环语句* j* {, M7 R, h6 U
(1) from <statement sequence1>
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<statement sequence2>;1 P+ e# z" k- n0 ]' p- y# o
end;
* a1 E# H9 a" J& w& J8 } (2) while <condition> loop H8 Q7 K& D$ R; F
<statement sequence1>;
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(3) repeat 7 H2 N/ m0 T: X* S6 P. H6 Y
<statement sequence1>;
/ ]1 y. [7 Q4 V. y until <condition>;
8 c! G! G2 J6 L( Z b: Z* Q' f x3 P (4) for <condition> to <condition> loop0 i& D$ g. S% m. x
<statement sequence1>;
3 |( m2 m2 n6 \/ [$ E& l! a next;
1 _* I4 m: m8 Q' i' d& R( l3中断语句
& n: n1 R, k3 w, a) K; C7 K waituntil <condition> prio <integer expression>;: U6 Y/ N' ^% @- G. |8 g% f
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, k0 G8 L1 M5 w1 t0 F' \以上为常用的函数!- O% s6 w9 [4 d6 q
还有很多,如有需要我把资料发到你邮箱里
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