|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
- p9 M- f+ B: J3 S+ I if <condition> then
$ e8 Q$ Y, M2 A! T5 t n3 O <statement sequence1>;0 Y, L2 Y M3 _3 E" s6 T
elseif <condition> then9 W9 a" \# I8 L9 |/ T- ~( m* j
<statement sequence2>;1 |1 X2 m5 x& [6 Y
else ; c/ P( h0 g" i& x# ]* u$ Y
<statement sequence3>;( t' u+ n$ u# ]+ @ u: W
end;
% w+ g) X/ P+ p$ c3 ` D6 W如果分支比较多，用：
3 Y" _& C* @8 l" t" @( T inspect <expression>+ i1 v7 o' o$ M& R- ?
when <constant_list> then! D4 j* c4 l( R3 i
<statement sequence1>;: m( h) c7 e: C% k. }( Y& a! }
when <constant_list> then( Q/ v; N' f* y3 A3 \ e& u
<statement sequence2>;
4 M+ t7 c T* V* h* J ...8 N% H& D) m9 D! y% ]
else1 T6 ?/ `* N& W. R) q# n' p
<statement sequence3>;* ]' V' [% j) |; u
end;( S% x' F% a! {- U3 V @1 d3 [
# V& s4 J6 M+ r* H+ h( @
2循环语句
* ^9 n# _3 e) |6 H% {; ^, L2 {! w (1) from <statement sequence1>. q$ Z5 l" C W& _4 l4 v
until <condition> loop
8 m) b' H6 k3 h% O6 T; L4 ^: H <statement sequence2>;# G) c' l. w# I9 `; i; g
end;5 _& h5 J# {; h3 b, u
(2) while <condition> loop7 o- y- Z7 o0 D8 p& K
<statement sequence1>;. R+ |+ n, ?9 h% z) `
end;( [* L- A: v* ^+ w2 s* d
(3) repeat 1 D* _( L; U$ x; O
<statement sequence1>;5 T1 m- X/ O2 D2 |
until <condition>;1 X. X8 ~' |; }5 V; W5 {2 t; e
(4) for <condition> to <condition> loop. }5 Y5 F# d7 Q5 ` d# ^
<statement sequence1>;
; K4 C+ ~4 d# O* d1 O* e2 N next;
$ Y! a7 S3 E4 h8 U6 [9 E3中断语句
6 C, W% a3 e4 B6 G+ w7 @ waituntil <condition> prio <integer expression>;! S- X/ j4 l& `. o* G
% H( {3 Z6 R, b4 {! C8 U' ^4 \( g% W& d# ^0 F% |
以上为常用的函数！! v; t* ^( S0 L/ ], P
还有很多，如有需要我把资料发到你邮箱里 - _) O. ?( \+ @! @# E: `
" S/ l' A* D! a! r8 @/ n
7 z1 s- Q |! S, X: j( r/ ^" y: U0 z! m; p; p' @
; U# Z3 c% b( [, o" V( Z) d+ D
5 k1 U3 g1 g3 H3 `, ?( B& v* d
& F1 M( E9 v1 k" u9 }4 C: H6 p. A s) Z3 A& X% ?0 {7 j
+ q6 C5 r' O- \7 y& y% I& U
6 n, |! O2 Q; R6 P) }
. b, v0 `" M4 a |
|
[复制链接]
