|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句3 n* ^3 M6 Q+ I4 p9 B0 O
if <condition> then# r- g3 ~. C# w) s
<statement sequence1>;/ |3 X% j& e* z) u/ t6 o! H6 }/ @
elseif <condition> then, f4 K+ d& ~- d& k& ]
<statement sequence2>;
* U; @ c( K+ w0 @* n else
& A) ?; y1 `1 M$ t) H6 f2 D <statement sequence3>;
6 e: Y% {) C2 D' ]! i% C. w D end;7 k: B& ^ f1 ^: w
如果分支比较多,用:0 \) W7 b( g: _5 @0 m) R! X
inspect <expression>
( p. `# I( u/ T% I when <constant_list> then( p/ n3 L) d+ e, [
<statement sequence1>;
, V4 a$ r0 T' N/ K when <constant_list> then! U3 x5 @; F, V* [- ?
<statement sequence2>;; t0 {, j/ u' H2 ~
.../ Q) R/ ^& f8 h# j* J8 X
else+ d7 z' k. j# q2 }
<statement sequence3>;: P! n# M! @) i% I
end;
4 ?$ p6 Z6 T. F) r7 W6 C! V0 Q$ ^% l5 P4 |, A% Q& f! o$ q
2循环语句
7 s: ]3 ~+ m, E4 p% f (1) from <statement sequence1>
, [7 k7 x: ^- q7 r/ u7 Z" H until <condition> loop2 s- R% q6 W9 e2 |& _5 w
<statement sequence2>;
2 O: Z& f# {9 d( l1 N8 `$ x end;
' [5 p+ s: i' y, A2 ]* Z7 }0 W (2) while <condition> loop
. s* [8 K. ]2 g% |$ b& x <statement sequence1>;& {0 v3 L9 Z7 s
end;
: Z% @* |1 b N: d (3) repeat
$ j k: ?8 e1 d$ X, d <statement sequence1>;8 x( \' U! ~6 N5 ]
until <condition>;
& s( s4 y1 t+ I: x% M& b( d8 }1 G (4) for <condition> to <condition> loop
E% M: G, g, u, v6 \2 w <statement sequence1>;: i7 \2 W3 C) V1 `
next;
5 k: f, J6 q: G0 M, G* S3中断语句: Q# ^( Q; j p( a6 }
waituntil <condition> prio <integer expression>;' f$ f7 e5 F! n- k: M/ K
S; c t$ m6 E& [
( J* [" o1 G& w# x/ [ X9 k以上为常用的函数!; Q6 A7 W5 K6 l7 I6 s
还有很多,如有需要我把资料发到你邮箱里
$ [. U& o3 E+ {8 b, t! n/ l/ m6 B+ U! U( _% r
$ G' @) Q' ?3 q+ y h. p7 e/ m8 ?8 q3 t" l: n6 d, I1 `# @1 L' I
5 ~6 ]' H1 }9 t' s0 K# s! T4 x
! R% c) M6 C2 I, @) H- X: t# I( ^1 j1 A' |
4 j4 z w# r9 }7 I
0 S) V& |9 X/ ~6 A$ j: v
* @% v. y7 [9 ~# H7 F- Z& Z) r
( S, e0 l9 d+ h: E! E. |6 v |
|