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发表于 2012-11-13 08:48:12
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1判断语句
3 J' { n& g2 G9 \+ |# ?# t if <condition> then/ X4 q9 ]% Q- v6 g
<statement sequence1>;
8 x& a/ F% @# q: M& k/ T; H elseif <condition> then
0 u. l( a. u1 i v# _$ |3 F& X <statement sequence2>;
6 S" V: q) i- p5 ^7 a T else
" h% \/ N# J* {" d- @* ?' `2 @, \2 Z <statement sequence3>;
) n6 B7 J( \3 J/ Z; s- [* f end;7 X) I$ q# n) y' L) Z
如果分支比较多,用: B( W. W/ R: h# X1 X2 n
inspect <expression>
5 j0 _' m: s" k0 m4 S [3 U Z when <constant_list> then
9 `* n" G& _5 A" L1 b4 c0 B. w3 W$ o <statement sequence1>;5 x9 K, ^+ F+ j; G9 b: F
when <constant_list> then
# z7 P+ Y; {7 Q% Y <statement sequence2>;
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else) W; t5 t5 ]( E; A; A
<statement sequence3>;
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M5 p4 N9 x" t5 \2循环语句
- i3 d. |5 d4 W3 e4 [" u" I3 q, O1 P (1) from <statement sequence1>
& K3 J' W& K- u* X* {: I5 h% U/ P7 P until <condition> loop
* t7 e6 p: q1 Y5 b- Z) ? <statement sequence2>;* l5 {) ^8 k4 A5 Q. a4 N0 e
end;
3 v' D- h4 D0 j+ j (2) while <condition> loop
/ U' F4 J, d- B <statement sequence1>;
/ J. W5 x4 U& C, Z end;
; c' A6 W% ^9 f# m6 X; Y6 V& G! J (3) repeat . [" X. e p& l$ r
<statement sequence1>;
9 F9 c4 |* }2 N8 n4 d) Y! J until <condition>;
" o* U: ]$ ^ g, a e8 G (4) for <condition> to <condition> loop
% M* _! c% e1 D% c! m" t <statement sequence1>;3 ]2 J, @% O; W) a# {0 L1 ]
next;5 Y1 q+ g+ X$ B3 F/ W" e1 J
3中断语句% M- Q: v; n0 X. `, Z0 @$ E
waituntil <condition> prio <integer expression>;/ [( ]' R \; f* P
+ F u: R" o2 I9 |+ ^) a" K
% _4 f* i- D* I' p2 X: Q" u$ ^- K以上为常用的函数!/ U8 ~9 G7 j5 \, J
还有很多,如有需要我把资料发到你邮箱里
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