|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句, T2 h' c, f a
if <condition> then
3 }# }7 m) e! H' b2 L4 ? <statement sequence1>;
& M0 n- _7 e2 O) n3 o5 ? elseif <condition> then
7 q, X2 T3 N, k9 D <statement sequence2>;
6 S: k+ `' }1 O+ x7 f) j' l else $ o7 H! D) O$ q
<statement sequence3>;
) ~! L7 _ W# J/ |4 G. [ end;8 k; `8 _* s$ X- h* f; w
如果分支比较多，用：
# g" `5 A2 w7 C" H inspect <expression>
5 `% N5 n8 ~8 ^. W, b& a when <constant_list> then) r: c2 T$ C. W* B% |) X+ v. m0 S
<statement sequence1>;
, |1 _! A3 e9 j when <constant_list> then
& Y* t J" ^. [+ y <statement sequence2>;
" L7 [, {5 G: {6 r ...$ N5 j5 A# o9 m. _+ Y( Q' x
else
+ S* @/ O$ M; [8 \9 m <statement sequence3>;' H4 O% a6 a" C
end;" J8 G+ q3 Z' T% F- c) i6 j: b
" I/ v( e, c2 M: d+ ^3 r2循环语句
% J+ V- p l% L (1) from <statement sequence1>
! v5 b) h8 I4 l m' v until <condition> loop3 o" w6 O2 E6 b3 a( O' D+ `* C. Y- T
<statement sequence2>;
0 t9 X& B; U* `, H end;& @# v O3 V( s
(2) while <condition> loop; O, L b5 y! N5 O4 q* {$ p2 M" |
<statement sequence1>;
+ \5 O1 V1 {5 P8 ~. m4 |: N! L% x end;$ x7 o7 O' w8 A5 A6 p& Z
(3) repeat P( N1 L! d( U/ r5 p! L1 D
<statement sequence1>;9 N/ K+ N0 W! c o+ Y7 S
until <condition>;. E* K% f- ~; x& ?
(4) for <condition> to <condition> loop
: ? _% Z' S) Z% _ <statement sequence1>;5 i3 m y# |6 u: N- K) v% D" {
next;1 H6 M* B8 w. p( _' V+ N& n
3中断语句
( a7 L7 F0 e* y q& m waituntil <condition> prio <integer expression>;+ s/ D" |0 y$ y0 u3 M; d
' @+ n/ C4 F0 P9 s8 w
- _# n" e+ {; G
以上为常用的函数！- r3 A& ~6 Y7 S) x! W# {
还有很多，如有需要我把资料发到你邮箱里
$ O" ]: q P+ Y) h X" Y2 q' \. s7 Q8 a
- ~. L. j# v. c: A$ U' {
$ R( \4 T4 i% w: A! J5 a; P
# W/ k! \5 t$ P" A3 D
+ J# c0 M' e! |0 D7 k
- F8 w* ~ F' q; a- d4 ?0 Z
6 \2 v: u# v/ L. b9 }2 b7 m# Y/ x7 v7 o3 R
& p4 r, y6 }5 G* g; B
8 e/ y- w/ D9 u% v7 p N! _ |
|
[复制链接]
