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发表于 2012-11-13 08:48:12
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1判断语句# {& _' e6 y ~+ n/ ~2 v0 \
if <condition> then: }" G# l6 h& W/ @; U+ z
<statement sequence1>;
7 Q6 e, L8 L; I$ _ elseif <condition> then: M/ D3 ]2 r3 R& ~ Y. g- d
<statement sequence2>;, q" N1 Z0 h- ] m8 P e
else / E& L3 x5 r! Y& M4 {8 ~* L' C5 Y
<statement sequence3>;
: ^/ C/ N0 W, n. J end;
9 i- c" p3 C- D! Q6 B% P2 I1 C如果分支比较多，用：
7 w0 k( A5 m0 P& W! f5 { inspect <expression>
/ e$ ~6 N$ S2 t) D9 p$ _* Y when <constant_list> then8 x/ D( X5 [+ N" C% @
<statement sequence1>; D X& _ i$ W4 o- B
when <constant_list> then
* h# U" }2 O2 q- \* ^ <statement sequence2>;7 }: l# \3 r1 v5 v
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else) |" V/ ], z' N5 R6 B
<statement sequence3>;
+ m+ r2 G; B3 E+ zend;& q- ^- }- |2 W0 O9 v
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2循环语句
9 G- o$ [- P- Y3 F! ~ (1) from <statement sequence1>1 K* [+ c/ B/ f& @. s1 ?( v6 g
until <condition> loop
! X9 h. m( T3 J% ]3 t: o" F <statement sequence2>;
- c! C2 V6 M4 R: N. ]8 R& D8 i; ^ end;" s, d( s8 n0 r6 e" G
(2) while <condition> loop# N# r3 [9 L# U0 M+ T' N E& ]
<statement sequence1>;1 w8 I3 _3 ~: t' u+ C. J
end;
: p2 o. w/ I# j6 i9 t3 m (3) repeat
% R2 G! c9 i' T. v <statement sequence1>;
' Z/ p: L' C' v# G6 ?: _/ y until <condition>;
4 r8 B. `$ }& Z* ^: c% X+ A o (4) for <condition> to <condition> loop
' D$ W* P) s# k2 F8 [! b, V5 ] <statement sequence1>;
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3中断语句- g1 a: W" ?$ E0 i' q! y$ j
waituntil <condition> prio <integer expression>;" ^/ p$ G5 K9 c
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以上为常用的函数！
$ d$ ^! Y6 ]1 H3 s. u还有很多，如有需要我把资料发到你邮箱里
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