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发表于 2012-11-13 08:48:12
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1判断语句- y0 t9 _7 L( `+ c' E) J! Q% X
if <condition> then- B' ^$ y) S/ Q
<statement sequence1>;8 |1 [/ Z( m) p/ f9 v+ R6 Q& c
elseif <condition> then5 J' w# p3 |" @. W+ \6 Z
<statement sequence2>;" E( Z5 L9 s, M, n) n t
else $ d- }% m8 F W0 e
<statement sequence3>;5 w4 I9 J% }1 a, E
end;# v. K8 L' L7 D, o7 y' P! l8 L
如果分支比较多，用：
% j2 w" c' H7 f4 f+ k inspect <expression>
* j. x0 r r! ^% M0 p* e! } when <constant_list> then, H9 ]4 Z" z; h" H
<statement sequence1>;7 o$ {* u7 D+ F$ ?& V# ?/ y
when <constant_list> then
0 s" s5 `3 q5 J <statement sequence2>;( l; H! L! \& G( ^. w% C
...
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<statement sequence3>;
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2循环语句
# [# L" U7 s* C" D5 H& a9 ^! N% I (1) from <statement sequence1>
$ @- T0 w, S( ^( H until <condition> loop6 W+ G. {% H& X* F7 {% n
<statement sequence2>;; E3 M/ F- i/ h/ ]* y/ O0 T8 [
end;' K" Z+ i( ^ i/ H
(2) while <condition> loop8 H1 O2 N, ^5 \8 @+ ]
<statement sequence1>;$ P& p5 F- V! F
end;
4 g) R1 [$ l6 e) T3 s (3) repeat
9 l3 _2 p( U. a <statement sequence1>;
7 H2 L# r4 ?6 o0 r, B, o$ `, @ until <condition>;6 W1 }) h8 ^" T( u* w
(4) for <condition> to <condition> loop4 X$ @6 q, q) T. T
<statement sequence1>;, ]7 w) D1 O3 e' y, `1 }, V
next;
7 j: O6 ~, }" i" N) x, q, _; |3中断语句6 j2 @7 C. m* G: A; A
waituntil <condition> prio <integer expression>;
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以上为常用的函数！# G" j( b* d/ w: G- X2 n& E
还有很多，如有需要我把资料发到你邮箱里 / Q5 R- S) D/ |2 p% C
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