|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句3 V- x; j o, Y/ c
if <condition> then
* G, N* @4 K# l <statement sequence1>;
' u9 Y; a% O. t* t5 D, } A elseif <condition> then3 E! r9 a' I. i+ Q
<statement sequence2>;: x8 d. a8 u n F
else
# c- `7 q P' R' h <statement sequence3>;
6 t) n- Q4 V" U/ @* S# j. ? end;
- F4 P4 M1 j2 P; c8 o如果分支比较多，用： s/ [1 e& R; {7 l1 u. @
inspect <expression>. }8 I+ U# V" y
when <constant_list> then
' c9 B% [. a2 v# \ <statement sequence1>;3 t# U; [6 K* V" X
when <constant_list> then
- m- e5 T0 ~5 k$ n <statement sequence2>;
( U- N' u2 u! w ...
. e2 E* G5 q& c$ j0 T4 T% V$ I else
" r( c/ D2 ^* o" k3 i) q {9 B <statement sequence3>;
% [# Y# y/ d* n8 T% wend;
+ i8 O. f" _7 `0 D
& H- q5 r/ }7 d' H3 R1 b- z% R( E, _2循环语句& f) V0 U+ i+ J) M4 k
(1) from <statement sequence1>
3 F( A# ~2 L) e until <condition> loop9 H" C& }1 e4 J2 G6 }7 E! M
<statement sequence2>;
' {! K- j: h/ [! s end;, L: y# n9 y$ o5 ]
(2) while <condition> loop+ @& C/ ^9 W7 `! j# D0 h) h# C
<statement sequence1>;$ k% q7 S. v" g+ t( G
end;
+ V5 {0 Z6 ?. Z) ?# O+ ? (3) repeat 4 Q* i# w/ h& l0 F7 w! M0 \
<statement sequence1>;3 \! L. n; M6 G. p, Y$ ^
until <condition>;7 d/ G. W- H' T5 m4 R$ C" c
(4) for <condition> to <condition> loop
% ?. J$ c% K Z1 m7 T <statement sequence1>;
Z8 O$ b3 a. O, f9 h# v* G% S next;
8 [8 ?% {$ m7 T9 j4 c3中断语句 O9 G+ j, j/ ^. g; `' e- B$ p
waituntil <condition> prio <integer expression>;
+ D$ j# W/ i; x" @
$ S: K# x7 A, ]8 p1 j% s& P) K0 g' e& N1 n
以上为常用的函数！
' x5 f& v. g' e, D- q还有很多，如有需要我把资料发到你邮箱里 ; O) O! d! f- X$ q) c7 ~/ ]
: ~) ]; n5 ]' l! C$ k
2 f H5 Y, q& y1 ]9 J
/ \" D5 c5 X& l6 n: Y
6 S7 _ m& u* d# z! d+ ]
' I$ d; F% |/ ^( w7 \4 g; q* h" p! J0 D2 w0 Y4 l
4 {7 I! o8 ]6 f9 G
$ e, x# s2 ^3 E% S6 q. ^
! j$ N: ?; V+ E7 @. K
+ D9 H2 b) t! J8 O |
|
[复制链接]
