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发表于 2012-11-13 08:48:12
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1判断语句. b7 l6 }3 i0 g2 ~. a4 g
if <condition> then3 }2 v6 ~3 z: I4 @
<statement sequence1>;
1 U7 c' I2 r! ~3 Z) B8 q2 q elseif <condition> then
" P2 ]: h" A& }% l5 [, k3 ]% B <statement sequence2>;
/ G4 a- Z# l; i- h" r/ f; { else * {+ ^- E! ^$ j5 T& B2 Z. Q
<statement sequence3>;4 t) H6 K4 u" J6 w3 ^
end;
% e7 v y# U/ R5 T" [8 h如果分支比较多,用:8 A1 @8 x b8 }: ]
inspect <expression>
6 ^1 `3 a* N. t4 v3 l when <constant_list> then
8 |( F" G; f$ `9 p' B5 N <statement sequence1>; L+ A8 l3 d. u. c( z
when <constant_list> then
" T* @' b7 e7 X7 s: c' d# u8 U \$ A <statement sequence2>;
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else
+ `: o+ u7 \5 P <statement sequence3>;
$ A3 |; N: Q: i: A0 jend;
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' D+ t/ \# C1 F4 `- m2循环语句
d7 E7 U; i; y3 u( ~ (1) from <statement sequence1>
m( z1 X F. Y. p3 t& S3 s until <condition> loop
7 {$ Y: x9 r; M5 ^+ U( J <statement sequence2>;
A6 J# S2 b- a; R5 m end;
+ l! f# e! {2 x2 U; O (2) while <condition> loop* B# E- l6 p: d' }) \" z/ f
<statement sequence1>;
8 h2 ]1 z7 T! q1 N end;
' b" N* d0 n: A1 G; ^ (3) repeat ! ~6 z7 ?# j% w
<statement sequence1>;
) `' v9 ~$ p0 @+ N, W# U until <condition>;
" }9 o: v6 i+ D2 A1 o# O9 X( T1 j (4) for <condition> to <condition> loop( D, p1 I" w) o
<statement sequence1>;% B: d- B9 r: @, v6 {+ `' @) a
next;
1 U; z/ {" Z4 ]/ o3中断语句
0 s, m/ y/ Z1 | P: ] waituntil <condition> prio <integer expression>;' C5 |; }* M7 |: o, i `
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以上为常用的函数!" K+ ~' ]2 l T8 T! Y1 R
还有很多,如有需要我把资料发到你邮箱里
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