|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
# E) V" P& Y9 B H" |1 h/ a if <condition> then y2 X2 L9 ]" d1 u* h& ~- _
<statement sequence1>;
0 j3 [) i/ V' r4 E: u, g8 O elseif <condition> then+ j! D3 {3 Q6 a4 B
<statement sequence2>;, R7 }2 H1 c* Z$ D5 b) G
else
5 Y, ~) o% q/ j q% R& _5 Z <statement sequence3>;" e- f5 o- F$ K/ \0 _( G
end;# K4 y' O! G! I
如果分支比较多，用：
4 a4 V! N1 Y* i3 d, {1 j inspect <expression>
3 C! {: p4 A7 S+ m. R7 x when <constant_list> then4 _: o4 d! k8 s
<statement sequence1>;6 k4 c/ H( d$ }. }) o
when <constant_list> then4 |" A& f! I [7 G4 W/ U5 |2 G& ?# Z
<statement sequence2>;
# G s6 Y4 [3 V& B7 g9 Y6 n" b ...2 m$ f# [* ~8 H! z/ ~
else- X5 H0 x3 [& Z1 V
<statement sequence3>;, }) |" M4 F1 O) x$ u3 X2 y
end;
# c3 o: d' Z; n/ n Q0 W' z& n# R' u3 R8 m
2循环语句
5 b3 j4 M3 r4 y( x4 e! |( ] (1) from <statement sequence1>& j: m4 p' |) ~5 u% D1 H- C( N* A; I
until <condition> loop
2 K$ [" `3 b" {9 \ <statement sequence2>;9 N |6 D' g, I. C
end;( D' I5 \( f* C+ h+ n( M
(2) while <condition> loop
7 |% c4 O8 }8 v <statement sequence1>;
7 c# j7 W' J# V/ W. @ end;
1 q; w- Z: P* J7 f ~ (3) repeat - @8 J# @6 @# c
<statement sequence1>;- W' d. t( K1 b0 s+ Y
until <condition>;7 H3 d5 A- y" v
(4) for <condition> to <condition> loop
" O. q' z+ F/ c A& ? <statement sequence1>;
+ d: B9 _7 Q* J next;
6 f# ~+ @0 Z# Z# g- d- W) t! `3中断语句1 x# J ]( b, f- ~$ z
waituntil <condition> prio <integer expression>;
9 @& [2 \5 w) M i) |0 {( E
B. l7 p5 h! X; K) Z4 y* o. U& y& E+ I3 P, a9 @5 r D
以上为常用的函数！- k* Y. l& j$ v
还有很多，如有需要我把资料发到你邮箱里
2 A1 l- e' v3 D* G6 ]
+ Y( Q) f5 ]4 V6 F p* e' Z, K$ [: s( w* K( P' R+ y4 F
! e& }( `+ L( B* G
0 y2 I3 F. f9 Z* t3 j/ I& I6 G. t
* f# W# t: i* i( b; J( Z
& J6 a6 J' Q- e0 A, Q$ H/ e, v# S2 s0 v; Q. A6 c5 L
- z3 |; m* }6 N
8 k8 y# M) {5 j * {7 b M! [$ P, t( c; h6 w
|
|
[复制链接]
