|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句: Z/ i4 E: u& y* z: v
if <condition> then
0 A( L* v. q! x- [6 D5 | <statement sequence1>;" U9 F9 Y5 b/ g( @! R
elseif <condition> then
0 ~2 l! P' I% D <statement sequence2>;
p3 g! g% h, q# y& k* _ else
9 q& z5 D7 B G/ G% \" m' Z <statement sequence3>;
4 V2 L& d; r4 L. K$ O end;: I4 N/ e, W4 h& M; i7 c% _
如果分支比较多，用：
0 I5 W, a, c; `* K8 @& S inspect <expression>
4 U5 W/ J7 }; m, u9 n6 s* w. P when <constant_list> then& }1 k4 G0 X w1 O9 ?
<statement sequence1>;
9 \8 X0 u8 {. K: l$ u" O. |( C, t when <constant_list> then- @' n! T) x: |
<statement sequence2>;/ |! ^( i# R$ A5 I8 j" \4 G+ p
...2 d9 b4 m9 d5 G
else
- d; ^# q9 g- J <statement sequence3>;
^* `; \1 N1 N Nend;0 o9 ~( Z% n: o0 m |
) {- g/ h' Y" }0 |- L/ z* J2循环语句. z% Z9 x5 _7 C' L1 N/ Z
(1) from <statement sequence1>) I/ Y6 t" T$ }. w1 N, h4 b
until <condition> loop
9 @% g E Y- [- V% h <statement sequence2>;) @" p6 r% Y! f$ C
end;
/ H# o) _4 Y9 B* `% c, D6 v" h (2) while <condition> loop
/ v2 h# g+ K; F: n# L <statement sequence1>;2 N5 g7 |0 q O9 w
end;) t% h& ~9 K+ C+ g! v
(3) repeat
4 G# i# N/ }8 s3 z4 }- g3 D1 n1 ^ <statement sequence1>;9 \) h% {" s ]( p' E3 N# Q1 ?
until <condition>;" B0 b7 i- \0 w2 ^, Q; D$ ]" u
(4) for <condition> to <condition> loop6 q& ?2 }3 E9 x8 {. N4 {
<statement sequence1>;
' k! ?/ T2 {. y9 M" U$ K& B* h next;
) U( d( c- O( X3中断语句
! t% j% g6 n4 a9 y! q waituntil <condition> prio <integer expression>;
$ u, B# Y& u% c2 ]& h- o# g, b! t! ?6 T" E; a/ q/ R
; u# _& n: C V! G$ K6 ?以上为常用的函数！ s6 S' ^+ f- O ?# `6 n! D( u
还有很多，如有需要我把资料发到你邮箱里
3 t; H% v) e& k. y5 G
9 h8 y, ?1 z8 U( F1 V3 p y/ j# q0 P
8 d0 P& B x6 M9 t; C- z R* I( J6 \: u6 M; E. f7 p9 ~
' ?' e! z' h* t( v r
! m; f6 y& z8 T( t8 |) {4 R' M0 y2 @9 ^& |/ o ~
. j6 {" V D0 `" _/ a7 }- |7 {& i3 \! C
; |, t& D, M. I4 ?# Y$ [) a
1 k0 F: J: E* d' D# p8 @$ ` |
|
[复制链接]
