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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句" ^1 |! m# ^/ h# H' m
if <condition> then
, }% ~1 J# m* J4 ^: a# g <statement sequence1>;9 ~5 }1 C. [. e0 t1 H+ T% V& [
elseif <condition> then
% ~- f0 K: W: o0 m. F4 p <statement sequence2>;
' W+ g3 x4 p1 w0 D3 ]5 X1 f else
! Q3 S" z% {; y. G2 J <statement sequence3>;
: g# V' C9 k. m$ W& Y/ `. {' `, W( [ end;
6 Z# x( d1 u5 z0 `/ W- P m9 K如果分支比较多，用：
6 s& `; l1 n, [. d6 r1 j- K, X: s inspect <expression>
3 @4 Z& e5 ^- H \6 H. G when <constant_list> then
5 p) z- H- R& z& {/ l$ @; _ <statement sequence1>;* O) H/ P! m& z
when <constant_list> then( w0 o* h- C$ W* c
<statement sequence2>;0 ~" F$ a9 N+ y$ r) z
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else3 ^) \5 C A8 w- z. p' P
<statement sequence3>;
( W9 C8 m: ]3 o+ D! send;
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2循环语句
/ ?$ @, S4 C4 l- k5 n6 F (1) from <statement sequence1>. T1 {5 F. |; U
until <condition> loop" ?, t- [ }' F- S) [
<statement sequence2>;
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(2) while <condition> loop
5 v w) Z0 |2 Y4 D8 m4 h# T& o0 V <statement sequence1>; \2 p) [$ ^5 |3 O% L! m! [
end;7 w+ d4 e( V4 T# O( ~4 }! Q) p
(3) repeat
$ a; b. I( ]4 b0 C" F$ \% N2 J1 _& B <statement sequence1>;+ z/ y Q& }' t+ `( A4 S
until <condition>;* x" I. V, S+ T/ _$ ~+ o$ L. A
(4) for <condition> to <condition> loop
: k( A# s. ?* g7 @* R8 M+ a <statement sequence1>;
& A/ Z: D& ?! t+ c next;3 h" \9 q. f7 v0 r- _) a8 c
3中断语句/ f2 v5 l' N/ s5 Z
waituntil <condition> prio <integer expression>;# M# A, s0 T) z/ i0 y+ \! {" s
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以上为常用的函数！- O$ l, V. f' M1 V+ d% i
还有很多，如有需要我把资料发到你邮箱里 . q4 P! F Z) }. W
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