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发表于 2012-11-13 08:48:12
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1判断语句( Q& u- k9 r+ k' R I7 v
if <condition> then* X' j' p* e& U! m' w/ D4 g, {# p
<statement sequence1>;
+ y1 ~+ w) j) j: b5 h" f elseif <condition> then
; q9 r1 U0 I; x* A <statement sequence2>;+ G. J5 ]* y" h: B- c7 z
else " I! j7 C7 f% D P3 Z
<statement sequence3>;6 V1 I) l3 L. h B# Y7 w( R4 z
end;9 n+ E$ ^, I3 _5 X' Q( a/ V
如果分支比较多，用：
) B0 e* B3 \% p$ J inspect <expression># K, t! y& k m0 N" p
when <constant_list> then) a2 i4 `9 x( O! u, w5 a7 X4 u( ?1 p1 q% h
<statement sequence1>;
6 C; f& G8 q% N% s' ] when <constant_list> then
, I: \0 J2 J" U2 u2 ~+ s <statement sequence2>;
( ?$ x! d% g, ^4 @ ...
8 X" Q# l$ N' L6 z' d( Z- z4 C3 O else
4 m0 x" K* n; U9 y4 K <statement sequence3>;
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2循环语句( _ R+ R: [8 B8 c5 Q0 i: U
(1) from <statement sequence1>
# o+ f( J3 U) Q. ?4 @ until <condition> loop
9 d* @! D+ B4 o6 m2 _" w <statement sequence2>;) I9 y7 @( x# |
end; Y# U+ Q& E" [. O5 {5 _* W+ }6 B' t. }
(2) while <condition> loop3 P8 e5 c7 l6 I% B9 {
<statement sequence1>;4 F% B/ m+ ~: k$ t
end;
- J9 F- o1 R' { ~$ |* V (3) repeat
{ o" t( ]$ m) X4 P { <statement sequence1>;
7 P. Y2 n" w* n" Z1 W) H4 z until <condition>;
5 j# F4 G6 \. u' `& p& I0 E, A (4) for <condition> to <condition> loop# q* ^3 n6 o# T3 I. x6 l7 F
<statement sequence1>;* ^; t6 h% B5 g. L! F) e
next;
* Y, L3 H7 Z" P' A, g' ], h. b3中断语句
, `3 T6 R& s, c5 l6 j ^# ]0 @ waituntil <condition> prio <integer expression>;
! i) b6 P4 c/ e1 T; X) a; s& {% z1 Q4 l$ F' j
6 }( G, P& N( c% S( e! X! O. N以上为常用的函数！5 {) q+ [/ [; M- t$ ~% N2 f
还有很多，如有需要我把资料发到你邮箱里 $ L0 ?& U- n0 W3 d, o [0 R! ^, U
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