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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
, g5 }+ s- J* i' w( M/ f8 I if <condition> then
8 `' I+ @& y D <statement sequence1>;$ `" J: c8 s: f" e6 W
elseif <condition> then
, I& ?; ?5 P& F, o# F8 D7 c- ` <statement sequence2>;8 r! ^( v5 K" L! n' {
else 3 ~/ ?! X* _* P* u
<statement sequence3>;
8 Q/ Q* ^, s8 H0 A& ^, a end;
# L; e) ?/ ^, U- d8 X' M6 b/ i* _如果分支比较多，用：4 B) y/ N/ d& s" e
inspect <expression>9 }, {2 P4 M8 Z4 ^" h3 z! S$ `* H
when <constant_list> then" }% V$ M/ l2 z1 W
<statement sequence1>;/ b7 F. d, T5 y9 k. z( c5 @* X8 x
when <constant_list> then
" B$ O2 X5 c9 `1 K" k+ T8 ]4 q3 U <statement sequence2>;
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else9 |6 e" u/ Z. g: N6 n [8 m
<statement sequence3>;
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2循环语句
, J* t: {3 d' t0 s (1) from <statement sequence1>: d; a3 A; j) ~& t: D$ A E
until <condition> loop' W3 c+ m2 v6 b. g" l8 B" i
<statement sequence2>;! n4 } b1 L7 c1 v$ ?
end;; |$ `' M) j3 H z
(2) while <condition> loop
! c4 e6 z, f: H$ V* V <statement sequence1>;
+ r& ~' J$ ^% B! A+ u% W0 x/ r. k end;
- n+ b& \4 S# }* p5 T (3) repeat
/ x3 a! ~( y8 T <statement sequence1>;
; A0 Q0 P* J6 E" R: O3 ~ L3 M until <condition>;; ?5 v& W& F* B" ]( Y8 e; a
(4) for <condition> to <condition> loop- [" o# Z; g. v0 h0 K0 I- [
<statement sequence1>;
8 x4 D S" j/ c/ {" b* Q/ w8 N next;
, _% I/ Z8 ~. q) R+ i- v. H3中断语句
9 C$ X2 a* E& r+ `, C waituntil <condition> prio <integer expression>;
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5 S" E( u1 G3 S" e: v; ?以上为常用的函数！ Z: G. s( C; `" W$ z% F
还有很多，如有需要我把资料发到你邮箱里 6 ]5 A6 R: X7 D) v+ F6 }
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