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发表于 2012-11-13 08:48:12
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1判断语句: s9 B% U% F: L7 D) `1 \) t
if <condition> then5 K' D4 a8 l- U& f9 C
<statement sequence1>;
- ?# D. S) {5 f) Y% A6 l elseif <condition> then
. Z0 ]1 S9 X) o( R9 c$ Y' Y& p, q <statement sequence2>;
' H# N+ u1 K# p else # F1 K4 s' m2 V% V
<statement sequence3>;. @" ^; {1 y: q. {7 h; R: s
end;
d! L, P# X! R: y9 {& T如果分支比较多，用：
% R2 ^- b- j' I; `/ p* b inspect <expression>! q# X! E. _0 P; W
when <constant_list> then+ F! Y% R! ^3 U. H$ D* i2 |/ m
<statement sequence1>;
, D. j* Z% U' L; o, Q/ z when <constant_list> then
% i- x# c2 l) @" w& m <statement sequence2>;3 q4 b7 D& x `. S9 a
...
! Z6 y3 l7 t. W9 e! D! z O4 w else
* E. g! E1 m) I7 z( b$ I/ T <statement sequence3>;
8 |# s* ?& C, E$ i1 L" `! g+ H+ k7 g( L, @end;4 B9 P3 l9 a% y \- [5 Q8 e
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2循环语句
! t1 ~! b, l0 w7 w3 a- b (1) from <statement sequence1>
\( W! j7 b' r* r- u l* ] until <condition> loop
8 X1 c# R8 I3 j4 j4 z% ^# D( J <statement sequence2>;
3 a) W8 ]* j8 [+ i) i$ ~ W end;6 E6 x. x2 g* l/ k
(2) while <condition> loop
4 [2 `3 E5 C( b# ?* t <statement sequence1>; w3 A+ c6 ~2 P" F( s; R
end;
3 u( R. I5 I A6 X8 n; r2 l3 ]' P (3) repeat 2 l1 `/ N1 w4 W7 ^( L+ t4 s" }
<statement sequence1>;
9 y2 b6 S5 [% c& K( { until <condition>;+ i$ E9 s& M8 Y
(4) for <condition> to <condition> loop$ \, K" O1 }) x& H# e
<statement sequence1>;
7 C0 R7 c, c8 a2 d! `: j next;2 n) A0 {7 u5 r7 W. r' |7 F
3中断语句3 L. S J0 v) I$ {1 @
waituntil <condition> prio <integer expression>;% N. U W( q. D0 R( U- w, s5 g
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% `4 S; [" y" K! U7 x以上为常用的函数！
- _+ D1 |3 U4 r; o* m- s还有很多，如有需要我把资料发到你邮箱里
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