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发表于 2012-11-13 08:48:12
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1判断语句! U8 k3 Y* g- L2 w
if <condition> then
6 h; |4 z$ {" ?. F8 _ <statement sequence1>;9 a2 x0 r- Y3 a0 P
elseif <condition> then1 b! b/ e) X1 M7 [" H/ _
<statement sequence2>;
, c6 z% c* Z5 _/ c" K else
/ N- ^. f! V: V% K <statement sequence3>;
7 s$ D6 r7 f& Z1 D# e end;. w4 f( U, X( U
如果分支比较多，用：
: ~* [) `+ i, }: K$ o% V- z inspect <expression>
5 H5 F2 d+ Z- [* R4 `0 v, U when <constant_list> then
9 G u5 a' C% U* ` <statement sequence1>;3 w! v" x# T& [& i9 I, J9 u7 o+ ^
when <constant_list> then2 M& ]$ S7 z. ~& M
<statement sequence2>;
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else
1 v& i- m) [2 ^" c V6 k2 w <statement sequence3>;
% N. z- }6 y6 p! ^2 G% f4 Eend;
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2循环语句
# ?* r+ [6 T) b6 P0 ~! b$ \1 i (1) from <statement sequence1>" o: h4 Y" y5 V9 C3 Y) X
until <condition> loop
5 K" \6 \$ p" I5 M8 ?4 L8 [ <statement sequence2>;9 L( p8 V; `0 O' S7 r1 L+ l" B
end;
) P9 e$ W% D! P$ q (2) while <condition> loop
0 [8 N, |8 M, C& ?5 Y" S2 `- W <statement sequence1>;
0 ?2 n# p1 T: p$ j0 ~' f$ _6 M5 y- z end;7 B; R( _& D5 A [3 N4 i
(3) repeat
& h, w: C5 t# ~% z( j, d0 T <statement sequence1>;
' c* N% t" V+ ?% O( z until <condition>;! w( V- `. m3 I6 B$ n8 d `4 g5 n
(4) for <condition> to <condition> loop! ~) a3 C/ X7 L
<statement sequence1>;8 l# A0 U4 T; O* t4 x) |
next;
$ j+ y- F9 i7 h7 [( A' Y3中断语句" V: `; _; q" ?9 W `5 `
waituntil <condition> prio <integer expression>;
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K- q# l% ?9 u$ {0 |8 s, o7 K以上为常用的函数！
# n J% ?7 P. ]6 {, E2 K, h* K还有很多，如有需要我把资料发到你邮箱里
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