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发表于 2012-11-13 08:48:12
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1判断语句) [% G, i/ h4 j8 [9 ^. x% k" t
if <condition> then
4 j# X- p& ?# b' L <statement sequence1>;
+ b& o0 \" S) F elseif <condition> then# ^0 h4 s4 t8 B
<statement sequence2>;
/ p4 W" p6 R1 `/ Z" g$ c! ] else 4 h; i' t( P5 A( ^
<statement sequence3>;
, M! [" y/ d8 d& ^+ u5 C end;$ p! s8 b# U4 n6 S9 Q
如果分支比较多，用：' n" I5 q9 b1 A
inspect <expression>% P$ C M0 w5 g# j' N
when <constant_list> then
+ f/ h2 G& f6 C8 n5 _* J3 ]( Y# u <statement sequence1>;' j% U1 q1 d g# B
when <constant_list> then$ u. @" _/ i3 l7 X8 T# m
<statement sequence2>;
' V, l! `! p( j$ [7 z ...
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<statement sequence3>;( \4 } ~ P- k, p( X
end;
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7 P$ x7 X N; s2 _0 j( I2循环语句5 j+ l1 C- Q/ T" d t
(1) from <statement sequence1>
0 {4 a( \/ X) R0 C4 @ until <condition> loop
: y' T# M" ~9 k) F' F# q6 F2 Y <statement sequence2>;
) a: F8 e9 y. a0 T end;( p2 v4 L+ [$ \$ k
(2) while <condition> loop0 ~' G+ A5 Y* S; i( F7 g
<statement sequence1>;
- O: T" @5 I7 p5 T8 e1 f, x% D& @* @0 Z end;
( J j4 N$ H9 d9 ?8 X, D (3) repeat
! K* r' E' b& u% A3 Q6 z <statement sequence1>;
: U0 `2 e; ]- f until <condition>;$ ~* ?4 S+ j% o: C* x9 b
(4) for <condition> to <condition> loop- W2 z$ J; a Z( C- K/ p* }" i
<statement sequence1>;
0 E( V( O. a7 C0 M next;
( P. Q* f4 e7 Q3 p3 B+ f9 X3中断语句
! P7 P+ X) p E8 ^0 J waituntil <condition> prio <integer expression>;
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6 f7 v2 r+ I& Y3 }! R以上为常用的函数！
0 ~: k# z& ~" v还有很多，如有需要我把资料发到你邮箱里
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