|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句$ G3 B* h/ h9 A: N* G
if <condition> then
0 D6 p4 t4 K5 @# G4 _* Y2 O <statement sequence1>;
3 ^: F, _0 M2 `& ^ elseif <condition> then
v# q' G4 y& r. U* o <statement sequence2>;
5 c5 g7 \5 n$ _. ~ else ' m* E+ W: N/ Z
<statement sequence3>;
9 `' ?% H2 B+ M7 w2 ? end;- Y; F- k# G- j8 W4 w7 s, g
如果分支比较多，用：: Q8 l2 A" S& X) y0 c+ J/ L2 j
inspect <expression>
$ o: r& M. P% T/ q when <constant_list> then9 F c2 ]' S4 q P) b
<statement sequence1>;8 \. n" i3 P" v4 M
when <constant_list> then0 D' U3 I. X$ y; t8 p
<statement sequence2>;' U9 V" F7 {) c, `/ Z3 Y. l
...
! {: z: x0 r& d, a else
, S; {4 D# z9 w9 P" L( Z <statement sequence3>;! p) a; R; r9 X, ~8 F1 C q; K
end;
* y9 d, Z! k( P/ x4 j- e+ q
' H9 }# M2 t; q8 Q1 J2循环语句3 ?! b: H6 z( D4 b1 H/ K {; m
(1) from <statement sequence1>2 i7 ?0 J0 ]% u5 L. @ n
until <condition> loop
! x% Q T$ e) r7 B, f0 K. n <statement sequence2>;6 U* ^4 [# H9 O$ N& y
end;
" t4 F" \% ?; F* s2 i4 z (2) while <condition> loop$ A$ V1 F) v0 t2 Y8 ~0 [
<statement sequence1>;' W( s/ o3 h2 U6 S7 E% ^) N4 p# V
end;
* D0 H2 M* Y9 U( F (3) repeat
1 N3 q6 ~/ I& R, E0 b <statement sequence1>;
7 j9 _% a- I- y$ M- L! S' t. F until <condition>;
& Z7 U$ s8 |+ V) j L (4) for <condition> to <condition> loop% \2 {, {" w+ |" H6 r5 O! ~
<statement sequence1>;
( G9 a3 |; F; C: u$ y" V4 E) H4 Q next;& L+ r- }1 D G! R" r" D
3中断语句
N0 T+ z9 J% @9 U3 |+ ?2 v waituntil <condition> prio <integer expression>;2 c6 I% Y, m6 j) \: {2 c
& [ e% t/ i2 w2 Z3 n0 p* R: J
" q& I9 M; p7 t+ K0 L) M8 E1 }0 s以上为常用的函数！
9 y/ b; u3 r3 s* E0 _还有很多，如有需要我把资料发到你邮箱里 - j4 b7 }4 b" e. |
1 r! K5 L! [0 Z4 X1 `& D
) G. M! s6 w2 ^5 K; W/ ]4 M, y& e. T+ y x0 G+ w
s7 o, D# Z* `! \( a( ?' Q* |. y
: _+ j/ N$ F' |# l2 P! m. l# b9 b# K
5 x5 J C; A1 d [+ n4 S* r m6 `' j X' x! }' z9 _
) ^. v& n5 g: [: Z
' y3 W' `" b' Z" B6 O. Q. g
|
|
[复制链接]
