|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句6 v1 O1 ]- x; x2 o1 Q" \
if <condition> then
8 Y% V$ K0 s! e2 w. g, t! M1 V <statement sequence1>;' d7 _. |# k8 q
elseif <condition> then! O/ h% D, V7 s8 s. `8 |
<statement sequence2>;
* u6 B( I! l6 o; ~! l& J else
5 ^8 d! T' x6 F8 X <statement sequence3>;
" ?7 i& d5 n _. t2 j: V end;# b9 h& l. a, F, u
如果分支比较多,用:
8 ]+ E; E* p% ^2 A- h inspect <expression>3 ^% a+ W1 v$ ?- Q- [$ E. z
when <constant_list> then
9 F p& W3 L* P8 C( L <statement sequence1>;: ?; k2 L" P0 J" G& ~
when <constant_list> then1 a& O9 ]' O. `
<statement sequence2>;
) k. E2 j2 {% S% p: D& P6 K ...
. d# J9 q. U3 w0 B6 }) | else
/ L* V$ n) h) u8 n <statement sequence3>;
( n6 w7 r8 q b3 R$ w" _end;. N2 e8 L( z a
' L4 {! D \$ v: Y; [% q" D' y
2循环语句8 T+ }- t p, |
(1) from <statement sequence1>/ d2 A% u! P V2 l+ R
until <condition> loop' g2 h9 j+ ~" g! g R( V
<statement sequence2>;( s4 W8 i: J: l2 P
end;
. z6 ^0 X8 e5 A3 ~ (2) while <condition> loop
" R: G- _9 k' W0 f! x0 z' \ <statement sequence1>;' G3 l v H% U' Y5 |8 r
end;
, p& C; V6 ~5 H" k (3) repeat
8 H4 K- ~' n z1 U! ?( n) A6 V <statement sequence1>;2 ~; a! }) V: f$ @
until <condition>;
' [2 }3 q/ ^0 ]$ b% }; Z (4) for <condition> to <condition> loop
- C3 q8 l; D( g7 q5 j5 ^ <statement sequence1>;
, L n' O3 z2 k9 u next;
7 y+ i. p* B+ Q+ U% k) _3中断语句' h, _/ r- V$ A2 t+ j' ]! g
waituntil <condition> prio <integer expression>;
% c0 h- M) t0 m" c7 e* h) A2 q. J% I* T1 P- f& P4 B
' [6 m8 z& O( V* t7 M" x. ]3 C3 R
以上为常用的函数!
( I/ a( e B, z; p6 Z. M还有很多,如有需要我把资料发到你邮箱里
2 L) q1 ^2 J1 {4 m' x. m; A8 { N& E1 O
/ X" C9 T7 u& J Z3 h/ u
3 |! V3 G: [; }2 P
/ F) s, H: M, |$ _, G% ]
* G: e' J# W+ t6 J9 U; f) @% F
. t+ F2 R6 V8 c9 Y" b2 O8 {
' ?) `# u1 @, {7 T; t# |
/ d- t+ N! d& |9 u+ w/ f
" B2 w5 Q/ Z+ D 8 {5 ?! Z0 Q& g/ D9 c$ _5 E% M
|
|