|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句6 T: J# r% H* a" J# q; f5 G* S
if <condition> then
, Q' v c+ g6 t7 J* ]! c- f <statement sequence1>;: I: a- ^3 ?8 H) R8 V
elseif <condition> then. }* S: e. r7 ?6 ^6 E5 B
<statement sequence2>;
$ m0 O/ M. z3 R0 f4 h! B else ! b: g/ F% F% G# F. f
<statement sequence3>;
' i" j3 \+ o# [% E1 S end;/ F9 \! t6 g" c& d# X
如果分支比较多，用：$ a/ z5 e% c8 N2 O
inspect <expression>7 g L$ C# l c; |$ M
when <constant_list> then
1 J4 K( y' Q: I <statement sequence1>;& x& U% h4 K( E% _6 _4 I- k2 y u, C: m
when <constant_list> then
& x% m0 Y. [/ a; E <statement sequence2>;
8 G% k1 D- B4 T7 E8 V p ...
5 L& L: _5 |; U) Z* [ else
6 c5 y1 E0 ~, S6 }8 ~ <statement sequence3>;! i+ r2 _4 @) l
end;0 M0 M( F& f8 i* X# M; t
6 H' U$ c6 }' D# ^/ M9 x7 w; T! |8 ^
2循环语句
% F: }( d9 b8 K2 s" B! S (1) from <statement sequence1>
% Q% c: |$ a5 g until <condition> loop
: N2 |7 Z( }. K$ u <statement sequence2>;4 v# N2 s2 G8 ?8 j) P
end;
& W( g1 x4 M z* k+ U2 l6 W+ G (2) while <condition> loop
" C. a" e W1 M <statement sequence1>;1 q. ]0 [+ X' y& {$ r
end;( l2 Q( N( q$ B1 d7 ?% k
(3) repeat
% G0 C; o4 `8 V2 ~8 R+ T2 M. | <statement sequence1>;/ w5 `5 s F: D' s2 u. n
until <condition>;
; s8 Z+ W0 h1 T; N0 D% e (4) for <condition> to <condition> loop
! u9 y# B4 R% x: t* @1 U <statement sequence1>;
8 B; W% M0 c6 N# Z1 G- W F, U next;
1 T, k9 c) @& A1 s S4 p$ X* U7 k2 r3中断语句2 r+ g0 j6 ?" W! q, K
waituntil <condition> prio <integer expression>;8 q% w l4 E+ N+ R0 l* n! R3 h
) {0 }( i. Y3 H1 k% u& r; P- {
$ L1 R6 F( ~0 S, o以上为常用的函数！
& {& m4 K0 C" b. N) }) O& A/ V+ ~0 ~1 i还有很多，如有需要我把资料发到你邮箱里
# x! v/ r& I" |6 g/ R( P. c0 I9 c
" I+ y7 `) T! @+ W0 H2 g1 m
% j! o; E" K0 ]3 K1 J1 d" X3 d- r: d( R+ [3 Z: \
, w) \+ }$ ^2 o0 d4 ?
" M' {- h) p0 m+ m" u# W$ n3 L0 m9 s3 R0 t' k7 D
1 Q/ w3 }+ W |, o! ^' H
1 h f) W3 L2 N7 K) S( y; U
' }9 n) ]/ f9 a; T' s1 m0 s5 w 9 m, W* L. o! A1 j) B2 x3 Q
|
|
[复制链接]
