|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
* p. N% Z) {$ G+ j1 t3 a% ^ if <condition> then
3 A& ? Z% a5 F6 [4 R, C, X <statement sequence1>; G x9 C2 R7 h0 Z4 G7 ?
elseif <condition> then1 _1 x$ m0 ^) X( u/ e
<statement sequence2>;
& n& i( t$ ]( X8 p else
2 |4 s# M$ n$ P3 f# b/ l <statement sequence3>;
, I3 b8 d5 ` d7 N end;5 Q3 V2 W! t" {, q- Q, O: H2 l
如果分支比较多，用：
% _6 i, j! ~; {( y5 C1 b inspect <expression>
% S, I. S/ n+ U when <constant_list> then
$ V! D% [4 q b! d4 y! c* { <statement sequence1>;
9 } \/ n3 M0 Q* x; r( _7 m when <constant_list> then/ a3 I8 a1 A# F: J, a- b
<statement sequence2>;- i0 O. ^/ ~' J W
..." c, W, o. R+ Q' @! x
else
5 j+ k7 L. l* _8 h: h <statement sequence3>;
# o7 Z- r) H2 n$ G8 k9 Dend;9 g. h+ \8 [1 T" W
r: E1 y- w1 c% A `; d. a4 l
2循环语句
c. j w6 k+ f (1) from <statement sequence1>( W1 y7 {5 _$ O S+ L
until <condition> loop
- u# j, ? o1 E' a: n1 ^3 i <statement sequence2>;) ^0 i3 i1 _, {
end;$ a A( F @7 C0 S. I
(2) while <condition> loop7 ]% b" |- K2 X% K
<statement sequence1>;$ _0 f* H2 `; J1 C7 a
end;
7 X7 P+ ]8 Q l* x7 D" P! r (3) repeat
+ W% @6 V6 f" Z6 k <statement sequence1>;
0 {. \" N0 y5 l5 J% [! a until <condition>;7 J, M5 K0 }6 t6 Y# X7 f
(4) for <condition> to <condition> loop
* m' E. x' B: o5 P1 D6 `* I <statement sequence1>;
0 c4 \+ ]1 P; ~& R& O7 Y next;! {0 h# w7 Q! M& m! s
3中断语句* N* H I+ z# p& B. ]! n8 s
waituntil <condition> prio <integer expression>;. k( z2 w/ ^# X; b; A; ?, q
7 n8 i2 W: |- D) L5 c' M# ?3 M& D, C: g; Y$ p2 N9 a' B! ?
以上为常用的函数！
2 _6 ~! B) n* [0 @% z% }7 o还有很多，如有需要我把资料发到你邮箱里
) `+ J# R. K9 e5 c
7 o5 [2 I+ ~1 C: p- O( E: H7 T: N1 |8 ?0 J3 I0 L$ b
; q/ x0 a8 Z" u& D : b9 e) a) y6 q6 _
( x$ Y- ]* [6 q
5 G$ B1 Y8 }+ j$ b& U2 t* ?9 C! }( C- `' Q
2 i9 Q+ a A8 ]/ {$ G1 |" `
+ L) J# K% n6 ^* O
4 {& u9 v9 [( @. B+ }
|
|
[复制链接]
