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发表于 2012-11-13 08:48:12
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1判断语句
0 L# O6 x3 d, G( _# X" a" D if <condition> then9 D! g5 U* x8 G9 m' W. [* T
<statement sequence1>;% P$ K( P. Y0 e" p* r. e
elseif <condition> then3 `3 x8 r6 @& |1 O. B8 i
<statement sequence2>;
. c9 A. i k# }+ I$ X; }$ r else
( O4 Z6 K4 X: t1 K0 F/ o <statement sequence3>;" n& P7 ^7 m) B7 S
end;
2 \) x( e9 b. R如果分支比较多,用:' [! Q, j; B7 I1 `5 ~- {
inspect <expression>- [# N' X9 `. h8 p* R
when <constant_list> then1 J$ ?! `4 j' Q( i* k3 @0 e( Z
<statement sequence1>;
# }0 x+ `- s( a# U when <constant_list> then2 Q1 D7 _7 `5 d9 q1 W
<statement sequence2>;- r* s: z" i) x7 z% V$ w7 N% t
...
& r# z, X7 m) x1 u$ U" { else
, {2 A6 x1 S; F <statement sequence3>;- ^" V2 Z( E& v3 w' D" @$ y
end;# `9 J! W, k4 X# g
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2循环语句) S; h* \, U( }
(1) from <statement sequence1>% a6 h. G$ ~" u) y+ m; f! l
until <condition> loop! g3 k, P' @. n. f
<statement sequence2>;7 [2 ^ D4 i6 ^# a! F: q7 N, S
end;% P: x3 Q% r' Q- x
(2) while <condition> loop
' g5 ^3 n K( Q- S3 h4 w <statement sequence1>;
; q9 s3 l3 D- C! t& Q5 q end;& j4 C! C! j# C4 L- j
(3) repeat
. s, z6 s: Z9 ?2 e* T0 H <statement sequence1>;+ F( Q; z- m. ]5 J6 ?! Y% I' |
until <condition>;
; e4 h7 w- Q! G7 P' q (4) for <condition> to <condition> loop
* S# m" T$ H+ p5 h" d; e# s <statement sequence1>; W! n# s1 v; q4 r$ `
next;5 q4 A* i1 i. l: O; |
3中断语句& k: g' a$ a H* X8 f
waituntil <condition> prio <integer expression>;7 E7 d3 g2 M: z0 @& X: M, G
( Z& P# o0 {9 P4 l3 k/ R+ a1 Y8 }/ t; L% c1 l! K! f
以上为常用的函数!% J" W0 x( e5 {
还有很多,如有需要我把资料发到你邮箱里 0 ^ S0 K7 N4 F/ o, M
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