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发表于 2012-11-13 08:48:12
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1判断语句- h7 X/ n( u% s+ {; v
if <condition> then
& r e1 @! n( s- e; p <statement sequence1>;
4 E) H) y7 Q: }/ r elseif <condition> then; S) e0 g3 l" a5 J& _. n- W
<statement sequence2>;& L* s% @1 B4 c4 X' x" o/ S! Q
else : x4 C# c6 @. G0 U3 \9 z
<statement sequence3>;
: q- I0 Q# Z' a/ w- e end;
: z. j6 c3 l7 Z如果分支比较多，用：
; ~1 f2 z" l) B# T# `9 T4 c/ Z inspect <expression>
/ A$ L" b& U' M/ `0 j when <constant_list> then6 r8 H/ H ]4 E( r+ H' `- [* W
<statement sequence1>;
# U7 h$ Q& i' C when <constant_list> then
: `/ F& j: n+ ] @* @ <statement sequence2>;/ T6 k, z( y, u# N- D) |! L
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else
4 W) E' f- J# I- N8 q <statement sequence3>;
; }( N! i% u1 ~! Q; Cend;
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2循环语句. p! x- i5 B9 v: P2 h
(1) from <statement sequence1>
, w) M4 W0 c3 \7 Z until <condition> loop: C0 E% R+ e& q4 \+ H; [
<statement sequence2>;
7 b: O( w8 y9 [, `; |7 `% x D end;1 M+ c' ]$ ?. R- D
(2) while <condition> loop1 t/ I) T0 x( M$ W% z
<statement sequence1>;
& @7 I" R& D6 d( n' E" J end;; e$ E1 N- e4 O0 n! l6 h
(3) repeat
7 h2 u8 n8 ^; j$ c- s2 Z, u2 d) B# S <statement sequence1>;
$ [3 j$ s' n0 w" y until <condition>;
5 w- ^. ]% W* D8 y! C( Z @ (4) for <condition> to <condition> loop
, s' ?2 c$ S$ j; _. Z C8 a <statement sequence1>;
1 e: O! f+ b3 f" m1 i) h next;
3 X1 k& Z9 X( D1 h* l3中断语句
9 j5 _# f; D4 g: N: G! m- t& H waituntil <condition> prio <integer expression>;1 O3 I6 R9 O/ w a# u. A
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以上为常用的函数！
4 x7 a( G7 |1 ~ j还有很多，如有需要我把资料发到你邮箱里
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