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发表于 2012-11-13 08:48:12
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1判断语句
; P4 s! k1 q* M( f* `5 @ if <condition> then; `3 R9 o) t E1 w5 I
<statement sequence1>;" d6 J9 ~4 u1 v, Z2 s6 @
elseif <condition> then
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else P: ?$ F$ B) |
<statement sequence3>;; w- f9 A" |2 T; {
end;
5 T, z( R i% _) O; h6 ^/ w3 z如果分支比较多，用：
' g$ [* a6 k6 Z" q$ N inspect <expression>1 l h4 k" z/ t+ {3 U
when <constant_list> then
" r' m- Q: L9 o2 f3 W: m: [ <statement sequence1>;
# U- b% C$ q) A3 H: k" I9 n when <constant_list> then0 r4 b9 e" P' @) _, k3 v i
<statement sequence2>;
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else) @# u% z F, s3 t0 y
<statement sequence3>;8 L/ j/ T( _) g+ e8 r
end;' d: Y, B/ G$ o
0 R$ I+ b3 h* ^# u2循环语句4 l0 K1 k9 ^; M8 p7 X
(1) from <statement sequence1># f( S1 b w; c6 P7 d4 X4 U+ F" ?
until <condition> loop6 y- U% M! a( D9 O
<statement sequence2>;
! f+ g. j# F9 t1 Z2 l; C2 R end;
6 {2 z; r" X! G/ w8 ]3 s2 ` (2) while <condition> loop: n4 m2 L% \+ c$ P
<statement sequence1>;) N! U. B4 x! Q( O# v
end;
! M- u$ Q/ r9 \, R- B" N: e (3) repeat + Z' b9 ?% k, V9 x) \- Q! w
<statement sequence1>;1 k# J( U+ }: Y. r
until <condition>;
: p# g- c% D- ` (4) for <condition> to <condition> loop
9 h) m. K, z4 t9 s7 w' P <statement sequence1>;3 {' z; e& V: z) X, k9 ?+ P. o
next;
, l7 j2 S) v- Q8 {3中断语句
1 y {5 P; O) m, J8 }* a+ K waituntil <condition> prio <integer expression>;
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以上为常用的函数！* o1 i8 W" D& }
还有很多，如有需要我把资料发到你邮箱里 + S* v) {8 C% o$ t6 y; K
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