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发表于 2012-11-13 08:48:12
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1判断语句
$ t" J4 a& \5 D2 X4 R0 q- H if <condition> then6 [6 c: a# Y$ o/ L6 i, |
<statement sequence1>;. s+ S- e6 B" j6 y G
elseif <condition> then
3 N Y7 U5 Y# y <statement sequence2>;8 C' G% _8 f+ y0 r
else
: J) ~) W- e' W% a! n/ S6 S <statement sequence3>;! [+ s1 G r9 ~1 X* O
end;- ~, M. x1 s: ^. ?: ] {
如果分支比较多，用：( r1 W( a* i" q5 i2 {/ N$ Y
inspect <expression>
/ b- e% b+ i' I7 o9 O. U when <constant_list> then+ N7 w: H- b- I+ R
<statement sequence1>;
; K# k( o2 F: i& V6 v$ l$ P7 N, U) z when <constant_list> then3 ?# S7 l) H1 E* P
<statement sequence2>;
; t3 R( ~' d0 | P) |3 a ...
# F0 J& C8 x9 u else
3 x3 p2 a/ ?3 u' c <statement sequence3>;5 z7 ~1 v. r( F. H/ H( E/ t9 _/ @
end;* B) _4 d$ k. ]. P* q$ M9 @
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2循环语句" [8 {+ n: l; U) V
(1) from <statement sequence1>
: ~, E3 y; L: j& H6 B! D until <condition> loop
# ?, P: D r7 h3 v) G" ?1 X <statement sequence2>;9 R4 X5 h4 ~# Z' ~5 [; r3 \9 j
end;1 V p: s. b! Q% N8 M
(2) while <condition> loop
1 @! E& l D1 M& i+ X1 O <statement sequence1>;
2 M: R: h3 Y6 D4 X end;
y: ?$ m$ E U G/ { (3) repeat ( h6 Y8 p! v `
<statement sequence1>;
- t( R$ _- z/ R: a/ N& s; p4 k until <condition>;
& @5 n7 Y; }& C (4) for <condition> to <condition> loop
% H: E1 y2 A6 [6 v) K <statement sequence1>;/ x2 ?5 _( d/ K
next;) S9 ^) \% h8 {2 b# B/ @
3中断语句
v' Z/ X# Z; o$ a waituntil <condition> prio <integer expression>;
2 [/ L; e1 l$ {% B2 v: S$ l8 g0 b5 t+ C- B# A* w$ d; K
- i3 V! d5 R5 E# ^' X以上为常用的函数！
6 [0 _3 q& d- F& s& N' Z* E3 {还有很多，如有需要我把资料发到你邮箱里 6 j7 H& `% i4 S; l* }
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