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发表于 2012-11-13 08:48:12
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1判断语句
2 D% a7 F) j3 m" F if <condition> then
7 f8 u Y0 d1 T, x$ w# ^- Y9 G& ~ <statement sequence1>;
, m3 C4 O, Q: O# K. O elseif <condition> then- Y2 d K; J# A$ C1 e$ S @
<statement sequence2>;
4 s$ ~5 c6 f# d0 Z6 k else
S- Y/ B0 u2 r2 Z3 s <statement sequence3>;
6 \! x0 ]3 D( G* K! C end;$ ^/ J& G" w4 n
如果分支比较多，用：
% e9 x) ?. [. ^) {8 W2 m+ G% \ inspect <expression>0 {- Z" K3 o, ^$ I2 f' ~' U* u
when <constant_list> then
+ Q3 h* |2 k, }+ U8 P$ ]) X. F <statement sequence1>;, Y. G. Y% q7 ]; n0 w" D! I* ^! x
when <constant_list> then! `1 a6 G# Z- G
<statement sequence2>;
% Q9 t! H$ M" F v: e ...
& \/ j( E) t8 \! i else
6 r& x& c* u! ? <statement sequence3>;7 r8 W- B( o7 C* s
end;
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* e7 w) s7 ^- d2循环语句 r" t$ @0 U% @0 X
(1) from <statement sequence1>
3 X2 l' V) P) m2 q: a/ o until <condition> loop
1 v$ f. s* o0 Z, l: \1 Q6 G <statement sequence2>;
* [% A8 U# n7 }7 Y l end;
( ^' y$ x, ?- s: ^. I+ C7 U* O (2) while <condition> loop; d% J: u; B c/ q
<statement sequence1>;/ M4 M3 `6 I6 b/ U1 n3 A! o9 d
end;
8 t$ B- {8 s& C4 d0 N4 b& w (3) repeat
7 Q5 K- P$ h% k9 ] <statement sequence1>;
6 x' s2 R- _4 N2 e5 W until <condition>;1 K& }6 e8 e; m
(4) for <condition> to <condition> loop
* H" ~# a+ c8 g9 K3 T( i6 x <statement sequence1>;
, Z+ Y$ e* Q- y5 b next;. P d& K% T: J: \! a
3中断语句
$ w( G+ v9 ~6 p+ Z+ }" z& p waituntil <condition> prio <integer expression>;+ u$ |, v6 a; s, h1 i. a9 [ @6 n6 @
7 f- r* d% x# l* B1 {( l
+ f1 x* o; K3 m+ c' r% z! J以上为常用的函数！4 |, o$ V! T9 e! h$ u8 u F
还有很多，如有需要我把资料发到你邮箱里 u3 L" D. b3 @1 {. R8 m; Z
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