|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句) F! y/ o" N4 h
if <condition> then( y7 V; z3 Y) a8 A, o
<statement sequence1>;
5 z/ r% g" n3 l2 x: w elseif <condition> then
2 Z. _9 B. O d$ ]. ^ <statement sequence2>;; Z0 G& B# k4 H- M
else
( |: g! ^6 H' J% } <statement sequence3>;# [% i* u- f9 o+ s) y
end;( Z$ N# \4 o/ i d1 J) d
如果分支比较多，用： Z$ E6 [! f$ }; j1 K, e
inspect <expression>, M& e1 S; o% D. v$ x/ w
when <constant_list> then
- e: R5 F% @# _, C( B$ z, L <statement sequence1>;
S d% w! B1 p: \- D when <constant_list> then
2 b: s+ ^9 z% j$ m$ z7 D0 T <statement sequence2>;
" L5 z5 W% G" U& k" Z6 ~ ...
: P$ B! f8 M; \3 L else
. N3 y3 |2 D/ {8 c1 v8 L, ]. i <statement sequence3>;
6 o L" _0 b& {; U. O* tend;! T% i! i/ ?0 m& S
3 A k( F) M/ K- f4 J. Z2 c7 O
2循环语句' ]4 g9 o9 X. ?. |2 X
(1) from <statement sequence1>" T7 S' }* r3 x V. i3 D; s
until <condition> loop/ k! D, {6 L* V9 y1 z
<statement sequence2>;
2 n# [8 O& ?8 o, U" m2 O' h end;7 _% C8 m, x0 S1 Y4 n+ c# D+ ^
(2) while <condition> loop
8 N4 M+ s" \2 }6 } <statement sequence1>;
: E! [! ~3 R. K9 A, e end;6 F6 ] Q) X) Z( F9 u6 ?% |: c1 ^
(3) repeat 0 y6 ?* a( Q, H
<statement sequence1>;
, h0 \( B7 I3 B until <condition>;
& Q* f* M3 [3 B (4) for <condition> to <condition> loop
1 i( P9 |+ l8 D <statement sequence1>;/ D* M/ G% @( c# M2 Y
next;
; n0 n9 C, u& Q* R" r/ T: e3中断语句
`+ c! ^& m" x9 m( c Y waituntil <condition> prio <integer expression>;
% |: V' a: `% `0 \, | e/ U+ n- {
+ J1 I$ I; b3 n; H) n, g( {
' u/ a7 @7 q- r! d, I) n$ d5 [以上为常用的函数！
% e8 f$ {, B: Q+ ], n! x5 I还有很多，如有需要我把资料发到你邮箱里
! w+ {* a! L5 U' ]3 g, [$ @
- w# F2 x: P* k, ^
( u3 w3 H! M3 h# b E ~- i7 f J, g) J8 ?* P
/ H A# Z: ~$ C3 ], }9 R
& y9 k. l8 u l. Z
+ H9 L1 `0 x' S2 Q
6 ^# Q8 m, l9 Y( }, {
% G5 g% w; D. O( r# U6 n; w2 y9 a7 \- a) A. c* P. x" b5 s
" S8 {1 x: H: u9 x
|
|
[复制链接]
