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发表于 2012-11-13 08:48:12
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1判断语句
' x7 \$ @" ^+ p# p( ]9 F if <condition> then g U' i$ B8 n! J; p1 D
<statement sequence1>;8 c2 h9 f; e9 f/ j( T J
elseif <condition> then/ g& O8 u/ {" L& `( y9 e6 k
<statement sequence2>;/ U( l* p9 T% \5 n8 Z0 I% M$ C
else ) {5 v, G2 N4 u- Y" h6 M( k
<statement sequence3>;
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如果分支比较多,用:
" v8 e" G6 K8 ]8 m: n, l; A inspect <expression>
; a+ O t9 m4 X1 J when <constant_list> then
6 h9 _' e" ]- N4 e <statement sequence1>;
9 r C ~: l& V$ K' [) E when <constant_list> then
' l O6 v# z0 C4 v8 |5 K, O <statement sequence2>;
9 W0 Q9 ]* h. B, K5 ~* H ...
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<statement sequence3>;5 g6 ]0 m$ M% ^2 G$ o7 U
end;, ^: R) h+ Y9 Z* i0 ?4 w" I- t
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2循环语句0 A3 j$ G; _; R
(1) from <statement sequence1>
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. X7 o7 W9 k7 R2 O+ ~9 j1 i <statement sequence2>;: D; d; }$ B* C& M
end;
4 K9 d: _% @; @ (2) while <condition> loop, m+ g: w% s+ H3 h. N! C
<statement sequence1>;
0 `% H2 l2 o3 u0 } k1 l9 p: T% t end;6 I- K2 w* p: V, k2 E
(3) repeat 5 {" @6 d; p' o, m6 `& l
<statement sequence1>;9 x1 R" N j! c- {4 M+ p
until <condition>;
( ?& F+ L2 a( v* |* i0 s6 p (4) for <condition> to <condition> loop
1 {" `- R6 y6 ]; I <statement sequence1>;3 [ s4 [0 ^9 c, ?# t
next;
1 n3 l3 ]3 i' d8 O# O+ A2 C3中断语句/ `$ B: ?$ L5 K. t) w
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
4 d* [3 g: t$ y: w% Q8 [+ ?" X还有很多,如有需要我把资料发到你邮箱里 ( P3 O, q1 c+ _, P
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