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发表于 2012-11-13 08:48:12
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1判断语句7 @1 A. M+ b7 q* S9 }3 ] v
if <condition> then* d: _0 F: ~/ N9 X
<statement sequence1>;
; J& Q, N9 @# K- w Q: y+ }8 a. X S elseif <condition> then
+ ~3 }8 n) \5 d6 i: A8 a* ] <statement sequence2>;
2 B) E; Y2 R. c- c7 Y2 {( b% J else
, f( x5 J; @, v8 H% V <statement sequence3>;
. l) A5 f5 e& y end;
2 M8 q9 y6 J) h) p( a4 v5 _如果分支比较多，用：0 z3 ~) m4 I1 ?7 Z) W) n
inspect <expression>6 t& x$ U% h" V" Y J
when <constant_list> then
1 C) p% M$ R) y$ v3 A0 i7 a# H <statement sequence1>;; w1 V( c( h% T; M0 K8 o" R
when <constant_list> then
- j: }0 e0 v) Y' w/ t8 C <statement sequence2>;) l; J( b* I/ ] Y" J8 L, p7 W) }! Z
.... k) N$ s1 K3 H. v7 N8 w; ]2 R. o
else
& l( W5 p: Z: }8 Z8 t6 v3 C <statement sequence3>;
0 M( p+ N# z7 e- P. `& g3 eend; n% K, ^9 e. T/ C8 Z
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2循环语句
1 A2 E" G1 l' D (1) from <statement sequence1>
2 S' v( q" X6 q3 Q% f. P until <condition> loop( x) o- o. z1 g" k( I. I+ ?
<statement sequence2>;2 x2 _. m+ O( U( b t
end;7 a: B0 x! U4 V0 b/ e
(2) while <condition> loop
+ m) K: d' K# Z" p4 p- p5 o <statement sequence1>;
2 ~3 s: m( H/ t' J: [$ E* C end;
$ ]) F4 h( U& e9 s+ s) D (3) repeat + E: t- \1 M" X$ Z: z' r
<statement sequence1>;! W# }* s: ~0 l
until <condition>;: t* K* y; z4 A9 T! ~
(4) for <condition> to <condition> loop
: X# N1 i! D& ~: v! G2 B <statement sequence1>;( z3 Y& N! N5 g. V! b L
next;8 a6 x( u. P6 U6 a: S3 A, ]6 g
3中断语句
: m% y1 {" `+ ~$ h waituntil <condition> prio <integer expression>;
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以上为常用的函数！( h* G2 b6 D) ^5 W9 g) v1 O7 o
还有很多，如有需要我把资料发到你邮箱里 ( c u& |9 ?: j" n. ~+ T- i. d* S
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