|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句" ~4 H7 K+ l! [
if <condition> then. I& X! P8 T) m- G' q5 i1 k- `
<statement sequence1>;' ~; R* M: n* v- G
elseif <condition> then
! S; y9 l& T$ D7 i <statement sequence2>;
& `5 I% L/ e1 c& V$ i3 i% z) w! V else - l' g% b0 i# T5 K6 Z# l( B/ j/ ^
<statement sequence3>;1 M b* y" D0 L# `* E
end;5 d+ f' X' ~2 ~1 M, f
如果分支比较多，用：! c) y$ v5 d0 P" i+ S
inspect <expression>
* |- G5 }* A# o when <constant_list> then
; O4 x& `0 ]- z: o' k! i <statement sequence1>;4 N2 u$ r3 }' n5 z) T
when <constant_list> then
$ g' P/ L* z6 E* z, Z6 r <statement sequence2>;
/ V9 W& s ]$ A: W" r- d ...
/ I y& i$ S' a4 g else& j- j8 k9 b8 g) T, b
<statement sequence3>;
' h0 L! G6 r4 _end;) n) z# F2 l4 Z1 q
6 e) o0 R6 @; e. x
2循环语句+ j: [: J9 z# J0 ?6 f, p; A
(1) from <statement sequence1>' h4 p: U' P# H+ p+ l/ |. c9 P" B- u: \! M. H
until <condition> loop
9 V; n$ m8 k) z2 h: d <statement sequence2>;
0 ?, u9 l8 J7 \1 V# A4 r: n end;
$ t' H; q( l6 r- t (2) while <condition> loop5 `; Q! M- l4 v( p
<statement sequence1>;! u2 D* `0 B! g$ v% _/ o" P4 `7 U
end;
) }! o( A5 k W! `7 q1 x (3) repeat . k! ^- g E# d, F1 v" ]
<statement sequence1>;
) J) X0 Q- h# S until <condition>;3 r! L% w9 a0 d- y
(4) for <condition> to <condition> loop
# Q& K& n5 g8 ^& w2 L$ `. o <statement sequence1>;
$ g1 B6 v; h3 _5 I, w& a7 K, ` W next;# ^, t- @* w& F; x7 T( \. F
3中断语句
5 o; S' O/ C! E" P E waituntil <condition> prio <integer expression>;5 [' u4 Q3 ?: h: k3 G+ F( U: ~1 I
9 l& \/ {- ^- t0 K' C
+ F' _8 r% \/ z! |; e8 g8 j以上为常用的函数！( r% L1 U9 m% ]3 X* V
还有很多，如有需要我把资料发到你邮箱里 $ I [2 I( D& b s5 B+ H+ d
9 @' q# Y) k1 w8 r" \ t
; B6 y" x& _. y' F8 K% v6 I, y
7 i3 `6 N5 G% u" l ) y' R/ S% K8 I* j: J/ X4 l. K+ x
) g% ]9 B s, q0 w& F, g
' a3 ^- X- r W3 Z- ?& o
% L0 h! T* d0 c) y5 Z) }) ^- B$ A: }) M( c8 ^
' p K! _ C$ o, y/ i7 _ , F4 \6 X; V5 k/ O$ k' R
|
|
[复制链接]
