|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句0 w: E+ E% W! k9 |( D/ @- x3 n8 Q
if <condition> then
. u0 @5 j. y9 I6 X" ^7 m! s <statement sequence1>;& x/ F& L+ {. q6 F
elseif <condition> then
( \ z* f5 U5 O <statement sequence2>;. i. J1 v$ m* z
else # v3 p9 l; d2 [
<statement sequence3>;
2 d) t& ]) h: h) h9 D1 g: M2 f end;+ r- U- ]# V8 y" }/ M* T2 ^) p
如果分支比较多，用：
. q' I( j2 P9 S6 I1 w% Q) U& F9 c inspect <expression>
& i2 x, ?: ?7 E" b# T8 X1 Q5 l when <constant_list> then
3 ]/ f7 }# }4 A6 G( I1 V <statement sequence1>;: F o! t8 T8 i. W
when <constant_list> then
. ^! }* r w4 K# o# R- a <statement sequence2>;% [% v: x, T5 [6 b3 H2 {9 x
...1 Z) n+ U2 s) z6 }& o
else
. X3 g9 f' T2 Y3 v9 P) T0 @$ O8 N <statement sequence3>;
' h p& e% J" L& y5 A5 A* `end;- s- z/ X5 @* |" m
, k4 F2 I. G1 G. Y$ v% l2循环语句0 n+ d9 U I' j7 q6 r
(1) from <statement sequence1>
9 n, G% @9 s0 x/ [( i% |9 D4 ~8 Z until <condition> loop
0 s; z9 g4 P; O( C" s. ] <statement sequence2>;
! O, e( T- M8 c" l2 D% ~+ f end;
0 G! F0 B3 C! M+ | [' V (2) while <condition> loop. m( _* m$ ]% e9 k8 \$ p
<statement sequence1>;$ b7 Z8 h/ m5 D, u
end;
& l m# }/ \) _! {+ A3 G (3) repeat
& | v9 v9 V+ D' T( a <statement sequence1>;
" O% y% P. ~+ H+ Y$ ?; w until <condition>;! V4 k) O, X5 K0 I# m- A
(4) for <condition> to <condition> loop$ |, G0 y3 X6 k, W; |6 A
<statement sequence1>;" E! l8 P) a+ l5 n! E7 }( u) a
next;1 a* b6 E/ D- ^- \! N
3中断语句
5 J4 j/ ^$ V% T) G! g3 B0 X waituntil <condition> prio <integer expression>;( Q6 F: T* N8 u# [9 y$ @2 T
8 N4 d: Z1 {& p" i
/ `7 y- x( n9 @0 u4 v
以上为常用的函数！
4 m- A3 o5 _4 U0 ], l- A+ b8 A3 c还有很多，如有需要我把资料发到你邮箱里
0 @" u- G3 D! F ]0 y/ g/ W
* _$ K8 ^1 P) a! s4 E- I% `- L3 D+ Q
& O% \" n" T5 I9 Q# b5 F' g3 ^& y
1 `4 J! O, Q8 `' J7 L* q+ u
0 \7 x, B, i! e& k* B; ]/ Z s1 w0 \2 G# @- \
4 t! k2 W6 h" t. e/ [0 x
9 ?* K, @" w* |1 q1 A/ E- G
( j) C( F* b! a# a/ c, E
! `8 H+ J% F8 \! I3 q! L |
|
[复制链接]
