|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
7 r7 m- A: k+ c if <condition> then+ U3 M& `4 J `, G, z: y! {4 x
<statement sequence1>;3 q& z* P" p7 O1 ]! z" i: t# H& X/ T9 @
elseif <condition> then( T: Z0 F: p- { U4 B
<statement sequence2>;
, J# G5 G) j& Y0 c else ) H+ k0 N! E* z! r
<statement sequence3>;5 U( g) s( R3 D! J
end;
# o# r; c* N* x0 i如果分支比较多,用:
) b# N y8 n" u% G inspect <expression>
, L/ n4 O/ L' h) `( K when <constant_list> then
7 x4 T, j/ d/ m+ b* N <statement sequence1>;% o! O7 L1 h& W" s6 W
when <constant_list> then
' Z3 |; T9 c @% `/ i4 e <statement sequence2>;/ H: m* X: t" u2 @2 t, W9 Y& a2 ?
...3 b# O. A5 U l* K" w: ^
else! H. a1 _7 |; J& y+ {
<statement sequence3>;0 `+ T+ P9 z" N
end;0 A3 s& i, w0 L7 T
; M. n J6 O3 e5 n. S2循环语句
( ~/ s* E3 u1 M! r1 X+ Y (1) from <statement sequence1>; _& H" Q! M! B: U- Y: A/ G
until <condition> loop8 f6 h" W: r& Q" `- M' n+ Y- l# A
<statement sequence2>;6 X/ F9 O* y, r" x
end;
3 c4 B$ k% P! ] (2) while <condition> loop6 l- c/ P! |, i1 ^. d4 y
<statement sequence1>;. ^6 t! y0 g4 I$ t3 a- q
end;; `5 v, j1 Y, H; M4 I) V* [
(3) repeat
5 S; ~) T# l- u1 _ x/ s <statement sequence1>;$ X& G* j6 d, ^ e8 R" L) ?+ h# }
until <condition>;3 {- ~# O/ f5 J- |* ?& U- w T6 G/ Q
(4) for <condition> to <condition> loop/ k( [8 a1 @7 [
<statement sequence1>;
: o3 x4 V) O8 W5 k. a0 Z" B( P next;
$ z7 P: A9 d/ e4 N: c4 h. l4 Z3中断语句+ y9 c2 v1 `' A# R9 b$ f, W
waituntil <condition> prio <integer expression>;
6 q; X }7 K3 A6 X t" J- s4 e- e( Y5 a I; B
, ^, X- L$ ~$ K% B$ Y以上为常用的函数!
8 y+ G, b2 Z; t0 Q# |: @还有很多,如有需要我把资料发到你邮箱里 ' u2 H+ ]5 u4 D: g8 M4 Z
& `6 U3 U* f; ~3 E4 O* A. Q8 {
; B. K$ s7 h% R, I
1 ~0 J+ }- t' R/ E; V( }
4 V7 x5 T& c% Q# R( M3 r
) X# W: m' O% {# r* G( r# r0 r' J( {2 K4 O! _. W
2 s# Z) R5 h8 g4 ~) E0 n$ B
# U5 F- S2 M, e1 E6 T) @6 k! J% c3 y) c) Y0 g# T' K8 f- Y
* [ h& C9 s1 f- Q6 M1 j2 \ |
|