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发表于 2012-11-13 08:48:12
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1判断语句 B/ @0 O7 W! j: u
if <condition> then
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elseif <condition> then' A4 w3 G! T) @/ m" n2 ~! r/ a9 {
<statement sequence2>;
2 v+ v3 \8 W! b% b else
4 w0 N/ M, a4 T1 G- R* ^ <statement sequence3>;
+ Z+ R+ a" T; F. j4 @: E end;
' W9 e1 j" ]& N6 S4 H: v4 F. p如果分支比较多,用:# O2 W1 h. A$ ?4 D
inspect <expression>
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<statement sequence1>;
F) s; ^# I$ S Q- B when <constant_list> then
j9 t+ [4 r- V/ A, N5 ` <statement sequence2>;
5 s" x1 e' A* F, n$ s7 T$ I$ F ...
; T8 G5 x# x6 `: e7 q2 d8 |5 {5 p! j else
5 l$ k- R/ Q( l" g6 F. Q6 R1 a <statement sequence3>;
, H; Q: T; L1 c$ P. R& L" Oend;# J- x1 {( Y) h7 b+ M$ V
2 @+ ?9 y0 w$ ]: w0 k4 t( U( c- O X2 S2循环语句
' E* d) n9 \( X5 l" w! a6 Z (1) from <statement sequence1>5 {) g, Q3 t: R3 ~8 F* Q/ g+ j
until <condition> loop) F b+ b. R# t0 N( t7 X
<statement sequence2>;
$ h6 j" M0 C0 s: X6 v$ M: q! E end;
3 X1 b2 K2 o3 l m; O8 ` (2) while <condition> loop
$ `3 Z4 E0 I4 r7 O& Z <statement sequence1>;
5 g" w o' w5 M( |0 H end;4 o; }& b) a: r: \) L8 q, e0 U
(3) repeat * _. ?% l2 n" p2 [! u0 D9 v
<statement sequence1>;$ @; n' V g# @: Z
until <condition>;
0 p+ h+ t& g, s9 [$ t (4) for <condition> to <condition> loop2 P7 v# U6 h8 f. d: V" h' y
<statement sequence1>;: O; V* a5 ?, h& w
next;
* m; h) m5 J/ y. b4 K, ?3中断语句 m% f/ e1 |; A
waituntil <condition> prio <integer expression>;% i( T! Q6 s- f( p5 g* j, a/ t
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! N( R3 z+ ~$ j; E: [以上为常用的函数!
; Z# w# W, n/ ~1 P6 [$ r还有很多,如有需要我把资料发到你邮箱里
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