|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
* P5 Z1 V' ?7 O- o8 T& m if <condition> then. C8 i F9 |0 C
<statement sequence1>;3 c j9 }# l8 v& H7 H' \
elseif <condition> then
7 `" Z( f* i7 I& e b. O <statement sequence2>;
$ g" p; \# n* |3 N else
2 y* a) v' q9 }& M+ M- m& q <statement sequence3>;9 u5 O1 c+ t7 ~2 v4 t
end;
/ f2 V5 _ c/ D& C! t如果分支比较多，用：
5 X- v; k* R7 r6 W inspect <expression>+ s$ X3 g$ U$ N( ~% m
when <constant_list> then
" D& ?4 T) V! k4 k/ k) r <statement sequence1>;
* F4 I! c/ s' D/ U( F! R when <constant_list> then
5 {3 l, T t& {1 ~ l <statement sequence2>;# m2 K u* q$ N2 e% B& H
...
2 R8 Y. F& p0 c6 K: o else
' A7 f1 h u1 t+ N0 [ b; M& ? <statement sequence3>;
) B; I7 K4 k5 H9 X. }. U/ Cend;5 Z; ?/ x* W3 L7 i$ ]
6 Q. [7 Y& U; U \2循环语句
* ^+ p+ ?% b" o! {5 ^# [9 ?1 C (1) from <statement sequence1>
" m! ?2 Z/ f6 H% t. d/ Z6 v, w until <condition> loop
* P& u) S7 n$ w% a. } <statement sequence2>;
) C" [. e) ?1 M' [! k end;
4 _4 @6 Q( a! U* ~: J) W1 H (2) while <condition> loop
' v: [* x0 A7 s# d" w* V9 A <statement sequence1>;# N2 g6 @$ q/ ]7 y" n
end;
9 c% e' V& h% v9 b) k- Y, Z (3) repeat
0 l) B4 q: ?+ ?2 E, g: G <statement sequence1>;
' I( q- e) g. I% O" G until <condition>;; L; N6 W: B( R0 E. K, u1 k2 y6 i
(4) for <condition> to <condition> loop2 T/ v- B# a7 t- n2 ~7 v, {: m
<statement sequence1>; C* j, P; ~1 O" _2 x
next;
, x7 S1 J* @ v+ Z3中断语句4 f, o* p( L) L \$ z% }
waituntil <condition> prio <integer expression>;) U+ w1 l3 e: x8 Z/ p" n
2 H" p% [' I4 B% n# d/ c7 q3 k/ @2 b
以上为常用的函数！/ _9 X- B! m! I' Z7 Z) n) a
还有很多，如有需要我把资料发到你邮箱里
$ S( O; e% X3 j" [8 J1 V2 ?7 U u' W5 y
$ D0 b- |0 H: V. K6 M: U! K/ l, c+ s8 ~. K! X n
) y |2 Y" `9 W( Z: y# N
1 h0 J1 h1 `5 |. f6 C& u
3 L0 j# M. m+ R& r `# R- P
0 u. i8 r9 ?$ C$ i# b, U: T# j+ M- ~: r
7 `$ N" b; e" l1 l, V n 7 F0 d5 {1 G* |
|
|
[复制链接]
