|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句' h/ U) M# d6 W- }5 s6 W( a7 V. b
if <condition> then
6 b& ?: A. c; L <statement sequence1>;
: h& e1 |" H/ u elseif <condition> then
- k% R& o5 \0 A <statement sequence2>;! w! k8 M, l8 \: d' m3 F
else
|2 e; ]& V" S ?3 V <statement sequence3>;& W5 n" q7 e# b
end;
2 o6 `+ v9 h' y; B- B* i9 r如果分支比较多,用:$ ]/ S1 h5 n! H/ i5 `/ ~
inspect <expression>
) V+ h) z# e* R3 f. w0 t5 b7 m when <constant_list> then
$ i. U% W% B* N8 Y7 Q7 T <statement sequence1>;
( G6 T) A( T! J# @9 [ C when <constant_list> then* a: K ^6 S' U8 W
<statement sequence2>;) S, j1 Z5 ~8 A; P( L9 ]
..." `/ P! q/ Z9 @' ~% g
else
$ j# B; h9 Z3 K- _5 u9 F- Q <statement sequence3>;) k4 E; E' e2 u* Z
end;7 v" s# ^( L, S( H5 C
. [% R& m$ i; s2循环语句
0 O* t# y! h; `% T, D5 _ (1) from <statement sequence1>$ {# E) L" Z% s% R- @
until <condition> loop
# F. Y) r+ O1 o2 y6 k) g% a4 y <statement sequence2>;
% A/ v) T* q( K end;
. ]2 E" m7 \+ X8 Q0 S- j3 x$ p! X (2) while <condition> loop. V0 U9 I5 O9 E
<statement sequence1>;9 o4 j0 l! U" [& ?( |- b
end;) H, g. y S& |+ y: M" P7 V- h
(3) repeat
( L- i, a- y3 Q2 p5 L& ^# K: H, s- o <statement sequence1>;+ [: q: K4 \( }% K
until <condition>;
! M9 Y& u% U0 u3 v" g (4) for <condition> to <condition> loop' G' X0 e3 i/ H& {
<statement sequence1>;, {7 o3 J. T% T$ b- ]% n
next;4 T, B; Q9 i8 n' O8 |/ e0 X
3中断语句
5 j# T& g& x- E% y# q& f waituntil <condition> prio <integer expression>;+ H3 ?& t8 ?; Z( S0 z5 `7 D
7 @! p$ B& }+ R: Y* h
# Q) f# z0 j/ }* T5 z以上为常用的函数!
s6 P/ j) r0 f9 n还有很多,如有需要我把资料发到你邮箱里 + J# g# ~ c( _" a* Q0 ?2 L8 W9 w
. V, i- l- S& z9 _. H' z
+ w% d# z/ W4 Z7 V
. L" B+ _, B! z& l4 i1 ]/ F
) ~: d6 f& o2 }3 I. e
R2 X) c n! T8 f- ]. J
: b. ]4 I+ B! {9 z' }4 _7 e8 i. }! {0 ^
* G1 S m" o* V$ w. g6 n$ a, j ^1 r. ?( u! `# ~
3 u4 q: P& N( E; b) O " _9 L0 D/ @8 k1 E! n
|
|