|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句. [& v* U4 Y, b
if <condition> then! |1 l( l; l, Z1 b) t0 r3 q3 M; \
<statement sequence1>;
* t9 c. F( t, W elseif <condition> then( [: U2 y0 J: W$ ]2 \& h
<statement sequence2>;+ ^* X# y- J: }3 h
else 7 R* s& K4 e1 y
<statement sequence3>;$ ~9 h) i5 X2 Z2 E! }0 X
end;9 L; s/ }: D( F/ p: r
如果分支比较多，用：2 d. v, y4 F; i* i
inspect <expression>
* y- E5 _, Q7 V1 a when <constant_list> then
* v% J) S# E& z( g/ L8 W% o <statement sequence1>;
+ t# e, B' y& W& o& Q+ K when <constant_list> then# `! F! u* O2 b! |( W/ E
<statement sequence2>;. }6 L/ c9 Q- x) B6 M& P9 Z
...
1 Q; s0 }! A" V( t( q* Z else
8 s( i5 \" f- B4 V" W <statement sequence3>;
( {5 r3 t0 ^- Q0 g: wend;% s, e4 T M# i: u/ e4 z
T9 ?& |/ T$ g7 X
2循环语句
8 x0 u x) v, i+ u (1) from <statement sequence1>
5 m0 E, _; i8 p ~ until <condition> loop* r, t$ Z$ R! w* r0 m& }3 L
<statement sequence2>;, }2 C) L3 _ S8 e) p* n* E
end;
6 h8 T5 H; E3 g9 C (2) while <condition> loop4 ?8 y( D5 \8 C3 A9 v2 i( |& E9 Z. b
<statement sequence1>;
# \2 h) G% W( ]2 J end;
6 q( B6 ^# ]& C% D (3) repeat
) n6 G; M& I! M2 \2 m1 A/ g <statement sequence1>;
$ W1 [: C: u( m! M6 _8 W M until <condition>;% o, P- m! b7 i- t2 v! b' k3 C
(4) for <condition> to <condition> loop4 j' I6 W' ^2 S5 T
<statement sequence1>;6 ], v$ s% O% a' {. A, J+ S
next;+ q! T4 l+ p2 F6 S
3中断语句
. f. Q& @+ U3 {# g$ k8 W6 W1 ]5 ~ waituntil <condition> prio <integer expression>; |5 W! n, X3 F I
. z5 @" f" r8 y" o7 L6 w/ o1 o
6 R: N$ X2 n* d8 h+ `+ [" b以上为常用的函数！
; Q+ l+ d2 H5 T# [. L还有很多，如有需要我把资料发到你邮箱里 . H5 ^4 B% _ P( V$ Z( q
( L/ a9 r3 P) a& V
% [3 O; I$ C3 g4 J% `9 k8 D: S" f; h6 u8 l
% Y" f0 z! w2 N* ^/ ^" |" ~6 J
; h8 k& J) F) v4 A+ c- M' P
Z6 Q2 K3 V( Q) Y% k( ~& z( x9 ], Z* ?' r
# I( w9 U6 [1 m7 W9 T0 u
2 f) v5 E; {: z a) t! C0 @: \
# C: Z/ s9 u/ [' Q( W! j+ ^. I |
|
[复制链接]
