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发表于 2012-11-13 08:48:12
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1判断语句. V* V+ @. J# N+ E% `2 ^! m, G$ a
if <condition> then
! n: h+ r8 |; Z$ {/ g <statement sequence1>;
4 O$ r1 T3 p2 g9 `+ k* w elseif <condition> then
3 V! b+ N/ d4 z6 [ <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
6 h: c+ u' V0 q; i9 [: M inspect <expression>
4 w/ i9 F4 [! ~1 C when <constant_list> then; |( }9 m8 k1 g7 z2 b
<statement sequence1>;
7 C1 q; P! ?7 R3 v$ k: A when <constant_list> then
/ }7 |% [% `4 R1 { <statement sequence2>;9 }; \; A) J! M( |/ |8 e; p
...
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<statement sequence3>;' N( b/ u* H9 q ~$ P
end;
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) t9 l$ h+ A% I& R2循环语句
6 F/ z! U7 g3 ^& ~$ L (1) from <statement sequence1>/ j2 x# x6 e. ?+ L
until <condition> loop1 v- A$ b# X* O% c
<statement sequence2>;
: t! k y2 Q; H* {% h6 H, E8 L end;( r) Q# V& D: W; ]
(2) while <condition> loop8 H. |! S9 W3 f0 [- [2 q
<statement sequence1>;1 c1 e! S9 b' E$ f/ M
end;- j) ]3 ?; o) \
(3) repeat
5 _' D! v9 S9 S( F- P/ e0 o <statement sequence1>;, T! t8 n- ~1 J
until <condition>;
6 f q# h, R1 C+ {6 k (4) for <condition> to <condition> loop
* T+ z9 K3 Y% w% { <statement sequence1>;7 p& u/ M- r e5 j1 M
next; O& A9 o& c* v! d8 A9 O5 J& T
3中断语句
& I1 c8 p2 o! [ waituntil <condition> prio <integer expression>;5 v6 l' _2 x! V. o1 F2 V2 V: R/ S0 j
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以上为常用的函数！
. k2 r- l6 m5 O2 N+ |8 g. m还有很多，如有需要我把资料发到你邮箱里
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