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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句9 v1 g+ R$ n, f8 ]0 Y
if <condition> then. A8 e' Q( R, @; p
<statement sequence1>;- N' X, |* ~, t2 F' ?+ ~
elseif <condition> then
k7 R; g+ g" H <statement sequence2>;' N+ Q% c1 Z( a# Z5 S
else ( Y5 ]' K# n' a( n
<statement sequence3>;$ }: V6 |. t: Z2 L: Q0 k6 `1 ]* M
end;
3 T* L6 f, Z9 [, I如果分支比较多,用:+ I9 I( D/ r6 ~
inspect <expression>& L( {/ v y8 Q7 S" t
when <constant_list> then* _+ w0 v1 f; Z+ y5 ~) K$ X9 D
<statement sequence1>;
# v9 H1 z% z/ i: i8 X: J# F8 g when <constant_list> then. S& @0 A& Z8 V' V
<statement sequence2>;6 i" U. A7 B/ ~& Y3 i/ h7 k' S
...
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<statement sequence3>;1 z9 G( \: k0 l% K) ~
end;+ x! c& P: D* A
% l* x( W( S. Z4 |; l! ?. U: S: x2循环语句; a6 I7 M$ d2 M9 Z- K
(1) from <statement sequence1>- B( }8 I- f. Y6 ^/ a
until <condition> loop
; l& Y$ Y, y1 S) j3 J# ^' D <statement sequence2>;2 u8 B% h1 }: L
end;
7 e% Z5 j6 N- E; C0 E7 l- @8 { (2) while <condition> loop
0 e w. Z% T! W6 [: @ <statement sequence1>;
5 q# g3 V) H* C$ V- t8 | n# w end;
, d0 Y& ?0 n9 i3 |$ O4 G8 r+ d (3) repeat : g. t5 `5 R' A- D4 }* j: Z3 W
<statement sequence1>;. x4 q; F9 B1 T7 x/ n
until <condition>;
7 ]2 |; a0 V$ y! X (4) for <condition> to <condition> loop5 W! K& y* C; l; R
<statement sequence1>;
) c5 i; w' b ^9 v next;3 c0 U# x9 W2 f" v8 W
3中断语句- c2 \0 ^6 Y* Z
waituntil <condition> prio <integer expression>;1 L! |5 d6 P* k. I5 F
9 |9 p1 i, `; r: g
/ C6 I" k! o( U% J0 D以上为常用的函数!
1 P& X9 f) t$ a* [+ w5 z还有很多,如有需要我把资料发到你邮箱里
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