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发表于 2012-11-13 08:48:12
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1判断语句
' `- e- f2 G) O if <condition> then
3 ]6 g0 O$ G/ I <statement sequence1>;
! |0 E t b: j; D elseif <condition> then
2 [5 k/ \8 l2 W' r# T <statement sequence2>;
: J$ j- c1 c+ c# z. f; c- J7 H else - f/ J0 h' T0 @
<statement sequence3>;% V% Q, }8 n) C8 R2 o( t
end;
/ J$ _% z& F! ^3 h. ^4 q% l: m: }如果分支比较多,用:3 V8 Y7 ^: C$ V, d
inspect <expression>
& y& M" A- U& Z% D* U( m' n( m when <constant_list> then
! P$ b U x& ?# m <statement sequence1>;
" n) P( g P! W" | when <constant_list> then( d; J7 b% V# G' p& K% O4 J6 i) k
<statement sequence2>;
6 F1 C( t, x2 ^- j& D! S ...
6 C) L5 R. m J4 @ else6 {2 [4 F \2 k5 C3 ?+ n I( d2 R7 r
<statement sequence3>;
4 W4 }4 f1 ] D9 r9 u# ^end;' D, {" t. }" g! o5 N3 v% k
4 o) `; H2 a6 i5 `, X }1 e- S' f2循环语句
2 I3 H; P& _3 ?8 ?) B (1) from <statement sequence1>/ |1 S( z' {, E5 a" m( [
until <condition> loop
& f7 m9 x' W( y+ x, q7 P <statement sequence2>;
& U" F1 E9 t" C, G end;
* L D( ?8 L, t (2) while <condition> loop( D5 D6 S/ K7 L# U! L0 r1 o; o& i
<statement sequence1>;% I+ {9 E) J! R5 I# S
end;
3 g3 f T5 C" H) V+ n2 o! }0 r (3) repeat
! k9 K8 D: H" P, D* x <statement sequence1>;2 A9 g h) ]& `) v' Q- W/ {
until <condition>;
( O. ]8 D* I9 |: i8 p7 s (4) for <condition> to <condition> loop" t# j* F& H6 F1 Y5 W
<statement sequence1>;
0 S! T( y( E2 {: o; w* T next;" @( K2 G( a, v9 H( ]# ~( P
3中断语句8 q1 W" j9 o# }) D
waituntil <condition> prio <integer expression>;
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: A8 [5 h) ` n* | F2 X
$ _# Z3 n/ S: }% D9 w6 H以上为常用的函数!
" R/ X. {# h: H7 g6 S" f- X还有很多,如有需要我把资料发到你邮箱里 * |% I7 a) h) n% [" W, f
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