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发表于 2012-11-13 08:48:12
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1判断语句% e# F* k: Z$ @) a
if <condition> then
. \0 n1 I3 H) _8 u, ^ <statement sequence1>;
/ _+ ]. _. @1 ?2 N- ?5 }; r3 X" M elseif <condition> then0 ~! Q6 m) g h. W" R: e' K
<statement sequence2>;. n6 Q. U& P+ K. r+ P0 W2 {! \& ]
else
( s- `# o9 |! Y" j) t <statement sequence3>;& t) l0 c2 Y* V: s i3 W
end;2 l4 @1 B3 ^- q, l+ |& q' X( a. n
如果分支比较多，用：' K" O& f4 _# p3 `+ g2 ~
inspect <expression>% g9 M, T2 |( H. c$ r& ^( M
when <constant_list> then4 R6 k+ J$ O; v
<statement sequence1>;
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<statement sequence2>;
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else. p+ n" ?) p1 K+ q. s6 T
<statement sequence3>;
4 m6 X x+ G1 bend;
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2循环语句! G- e; ]% x' U- y# t- o! f
(1) from <statement sequence1>
# r7 S8 S, {- N$ I: Z" J1 m until <condition> loop" E; |: H, g" @; h# c. c9 ^
<statement sequence2>;
$ a3 \' f7 y' X end;& m% t' Z8 `4 l
(2) while <condition> loop( i* b* O9 Q( s4 L9 W
<statement sequence1>;
& X' l6 \/ P9 H( s. i" f" b end;
3 ?7 e; ?3 ^: u* o4 f! b0 v (3) repeat
! _ }) d/ W2 d1 a <statement sequence1>;9 w; }" O9 [. Z
until <condition>;
, m3 ~8 W( ^7 ~# f" U0 k6 A2 u (4) for <condition> to <condition> loop
. U4 l6 P6 Y5 z% l" }" p0 M* r <statement sequence1>;
0 l) ^ i: X$ S9 R# v1 O next;
& [ g6 @- H/ n* k3中断语句0 A2 H; o( s$ ?4 ]& J
waituntil <condition> prio <integer expression>;
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以上为常用的函数！* o* t$ q# G- R/ [
还有很多，如有需要我把资料发到你邮箱里 . b9 ?& x# O6 l" }8 Q/ E
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