|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
4 F0 g5 u1 q$ |% Z4 J5 @9 z% ] if <condition> then" |! [9 N; ?. u6 h
<statement sequence1>;
; p5 w: h: T5 F. ^3 [, i elseif <condition> then
/ t, h. Y- x* Z- q# c6 `/ a2 {2 X <statement sequence2>;
7 u, c7 b' ^" b2 V else
3 F. Y/ K# j* z, W <statement sequence3>;, t7 S8 Z( Z3 w, w8 L
end;9 ~) K1 Z! A: Z z$ c
如果分支比较多，用：
6 K$ _4 Y$ Q6 N8 s! G inspect <expression>5 g) D2 s2 y6 E/ }$ s
when <constant_list> then6 g u8 j' t* L) a" f
<statement sequence1>;
( c% n5 p9 ?3 k2 m: e6 B" x when <constant_list> then4 k& q5 c/ l' V+ M
<statement sequence2>;* U7 g$ ]4 Y$ m6 E
...' _7 j4 r& K; a+ s* j
else4 @2 Q0 M5 E3 }4 z5 I4 w; |' t
<statement sequence3>;9 {" O- h7 O' S; x( j. N2 g# R7 K3 }
end;
/ t6 H" D. \5 e+ K7 n/ \% r. e5 w9 j- W0 R+ ~3 V+ b
2循环语句: a; H$ h0 G% P4 Z" @
(1) from <statement sequence1>
4 Z" ?9 i8 S+ l; z& A2 `- O until <condition> loop4 Y( r4 O: c. }) K( W5 r [2 ?5 a; _
<statement sequence2>;+ s1 e5 ~6 g- k
end;
* J# w. P* M: \' Q5 A (2) while <condition> loop2 ]$ ~' e$ t; {( z. ^" b9 Z
<statement sequence1>;+ ~7 u2 x7 z5 {4 v0 a' x8 F( M/ M
end;& S" @6 i: G/ J2 t2 a- L
(3) repeat
% B1 W) S4 Z- M' l- H* {" d3 J <statement sequence1>;
1 U: R4 l( \& n! G until <condition>;$ u( I3 ^8 v6 \# z) m
(4) for <condition> to <condition> loop
; A+ n$ V) J' ]( h; M7 {, i! [6 F <statement sequence1>;
+ E6 v" L7 { [+ W9 O% B6 | next;/ ^4 T' u& k" b! N3 l* ^* `
3中断语句
/ d$ x/ r3 u8 s( _" j& \ waituntil <condition> prio <integer expression>;7 D4 t' U( g* \( g c- Y* o
7 V1 \% b T' q) n
7 H8 u, r1 b7 F以上为常用的函数！
) \% U. w( l6 b& U: n还有很多，如有需要我把资料发到你邮箱里
+ ^7 F; q0 B; q+ r m6 O: B$ I) ~, W# r0 B" x/ Z( H
1 C3 \5 {- J {7 @# h) L7 e
# H6 w" O# o5 C$ v
+ G( N0 ^7 \5 J
. h5 l ]: x' C- f
/ T$ D0 A- o: {5 m' t* Y' M- ]. u& ^7 U8 r" i7 t, d
3 @4 q* `& ]$ a' I* [' i: A' {! e* v4 N5 m$ s$ U! v
, r: X/ d# h; ]( O2 e |
|
[复制链接]
