|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句+ S. m9 d! O B
if <condition> then% r1 i* d- ^' t- H3 G
<statement sequence1>;) f) S' [ U# F6 @9 }
elseif <condition> then
0 s5 k3 S; z1 |. u) i <statement sequence2>;$ x/ N* `5 u! @
else
3 ?( x: y3 E8 h, V8 C <statement sequence3>;8 j5 P; c/ R9 N0 L
end;* y4 |- F! T D0 h( w% @
如果分支比较多，用：
2 n/ K- L& f/ ?- K% ^( C9 O" r; c' m! b inspect <expression>, _* U4 }/ x# o* d8 J5 d ~* z
when <constant_list> then
b* h& g/ T9 z, h1 b N9 V; A <statement sequence1>;) j* A) h$ O6 i! ]6 ~
when <constant_list> then. \9 L5 l0 ]& S6 ~# A
<statement sequence2>;' b9 c* M6 a9 V% ]3 G# T" S% H; J
..., t7 X$ G) _ m- R
else8 f! [% K" n$ X: P) j% `
<statement sequence3>;
! B; h6 o; c& g' Z' b; C% B+ {7 Dend;1 X& W9 S+ f, E K/ w! I! L
, U' C8 l) E) \- b( I0 U2 B
2循环语句
6 P/ x9 r- P9 Z1 H; e (1) from <statement sequence1>
7 M4 E( m! k+ B# ]8 a until <condition> loop
+ J1 A) }; l$ ~% d5 k/ l& N <statement sequence2>;0 c: @! D8 N+ N( E b9 I
end;7 p7 I8 Z& k. ?" ]1 [
(2) while <condition> loop
+ o9 e( H7 {+ D5 U4 I <statement sequence1>;( u3 ~5 r, b4 ^; a% y
end;
, s! D% p/ z ?0 | (3) repeat $ I" K3 i0 E7 t! h2 J) `- ?( i% P
<statement sequence1>;
4 g4 Z9 I+ A- h- p8 F/ L x until <condition>;
* s. _$ L; Z" X, r (4) for <condition> to <condition> loop
2 c$ A A/ }( w" z& s" S: X <statement sequence1>;/ w# v) L6 d; P& H2 K+ Z" V: O: W7 F
next;7 V) B: ]9 m. y1 U# W# ^
3中断语句
$ _+ O8 ?( T& _8 I0 R$ n {6 s1 D$ A waituntil <condition> prio <integer expression>;
" t2 K9 Y: _0 A0 I$ j+ W, s
1 h' ~5 o' F5 O* G: t; U0 X
" ^5 ?: r. [) x9 b* A以上为常用的函数！
" X* o8 H1 ~& z1 I! O' b还有很多，如有需要我把资料发到你邮箱里 # s1 A2 ?: }: w0 V" i
8 U% R9 H2 o, D+ X* l
; z- U* }" ]' k4 [" ?
6 u7 s9 w3 H! E
$ c! |1 t* x7 J9 E' x6 s
) x$ E: u8 d ~0 j3 c
' a) ~! r1 o' x1 n
) I1 x" r/ X. C* b) U( ~8 |. v/ Z- q
& j. E2 K4 A- o! `
9 A: c6 f$ n1 n% U7 M |
|
[复制链接]
