|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
% x" S( w6 E x3 _9 k1 J if <condition> then
: U- ?" V* C# t' ^# v) L9 n6 r/ v: q <statement sequence1>;; |, d5 N( X+ g% e) w* i% x
elseif <condition> then4 ]8 q: ` u2 ^+ E
<statement sequence2>;; Q+ R- ]$ Y+ R8 b. I* T
else 7 O. n/ l1 q5 ]; ~
<statement sequence3>;
0 F3 j" v$ S6 I: T end;' ^) r% u5 a) f9 u& {
如果分支比较多，用：
/ F& ?1 z8 _$ K( j$ L9 `" { inspect <expression>! y, l& C8 H2 r; S5 y/ }3 f
when <constant_list> then
7 G8 |' E1 k# a( ]6 M/ B) E <statement sequence1>;
, R! M$ b7 K3 u! {. { when <constant_list> then! j. Q: N4 r, t! A) c' I$ f Q
<statement sequence2>;
3 T& `' |+ M7 {, ~- x/ _ ...
7 M. F+ I/ L5 C8 j; Y7 ~5 N6 ~; y V else7 A+ r" V O9 [# Q* t$ P
<statement sequence3>;' W" o) L% {7 i, F
end;
) P% q5 a( M2 z E$ N0 Z" j, ~' o$ |# E% Q9 n3 H
2循环语句( ?+ Y/ \& V" l3 c, r" e
(1) from <statement sequence1>
8 d) X9 [6 k/ n/ o! p; z until <condition> loop
" j3 k: l2 J' H8 l6 m <statement sequence2>;; u- e0 x; [- H
end;* r' }6 i X% @% M3 N$ @& n( q
(2) while <condition> loop
3 J3 _& _3 d3 \& O <statement sequence1>;
0 Q0 {4 @6 I" e5 f! P end;
* |* L3 N; [' h$ D6 \1 Q+ s (3) repeat
: \3 {( E, G& P4 R$ J- ^ <statement sequence1>;
( Y& D' h! S, \- l6 }4 C until <condition>;
$ ^6 ?3 |3 O) M' h' ?; x' v1 w (4) for <condition> to <condition> loop
. a7 c4 Y1 Y0 v, i5 ]; P <statement sequence1>;) ^2 B/ Q/ I7 Z
next;2 k- T: [. D+ f$ g: f
3中断语句
/ v" ^1 H& B3 t( ` waituntil <condition> prio <integer expression>;
. ~0 i) y3 V* I+ x5 L( M0 x$ S9 ?& g6 h3 s* |: {
v, }( I9 k! h$ U8 t以上为常用的函数！' D" n3 k/ I0 r7 Q+ M1 j
还有很多，如有需要我把资料发到你邮箱里 + b8 K" M; o8 C! J: [5 Q p
- ]5 l& G* J, R8 `* H3 @0 ]* R7 [2 x2 W3 u& ?
4 u4 T; m& ^- O6 C7 d3 E( [
# R9 J7 R" p' ]! d0 B/ D, |6 A! ~1 f; M8 A+ I- K& Z
5 g- Q v {8 W0 U, X9 h+ R6 ?/ M( X+ @1 C9 f- \2 Q& r
6 U, k1 |7 W+ i
8 Q# {+ j4 g8 h; m! U2 S* h8 _ * n7 J5 g" i9 n
|
|
[复制链接]
