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发表于 2012-11-13 08:48:12
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1判断语句4 G' K7 z3 l m9 j
if <condition> then% D% n9 _" C0 r% K
<statement sequence1>;
+ Q! F% j, q3 T; V; V9 U elseif <condition> then8 ?3 o q" |3 [! s$ M
<statement sequence2>;, D2 V0 T. U, |3 U
else
6 h& h* [+ q! C' ~ <statement sequence3>;
) [* h% O4 @$ H& J6 `4 _" Q end;
% w$ n/ n. B- B9 ]9 u# l5 v, f7 x如果分支比较多,用:! d. T; N1 H! p! i
inspect <expression># W& O& N( u" c6 W) } R
when <constant_list> then6 y/ l1 A/ r( C# p; l: |
<statement sequence1>;6 |1 j! s$ z7 ?3 @4 L" Z
when <constant_list> then1 p! u `5 }0 X; X4 {8 n" Z: K3 \
<statement sequence2>;0 M5 G; Y, V* i0 a0 g4 e, f) n
...
& n: d- l& z8 I* i- L& h3 {; { else c- i8 [% n/ }7 `% ?
<statement sequence3>;
! g* `0 a9 R0 e% f% nend;
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2循环语句- X5 u/ ~5 t7 n7 c% S1 a
(1) from <statement sequence1>; r ~% X. c R3 n! a, [
until <condition> loop+ E4 O# j8 w; @
<statement sequence2>;
! k* P, Q+ h. o) k end;
% a) D4 L1 H k$ A& A- h- b% I (2) while <condition> loop
: N; e* N9 F" \+ c9 o <statement sequence1>;, g' E- G2 V% `" Z. `' C8 y9 x# A
end;
! x3 N3 S2 q# @ (3) repeat 0 Q% v+ c- T- T( m3 ^
<statement sequence1>;' Q, J- _( E* U- G* q% P& w
until <condition>;
8 ~% N$ A& L ? I" y (4) for <condition> to <condition> loop0 e# G" U' n6 Z' [
<statement sequence1>;
3 g; M5 B% ~6 D( p' Q( n next;. ?/ r! f! `, L- X5 N6 l
3中断语句
2 d) F! r' ]6 H/ @. [2 H* G" r waituntil <condition> prio <integer expression>;+ G1 X1 a6 @( u
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以上为常用的函数!
/ A. b% M9 R. v) Z, Z2 ?还有很多,如有需要我把资料发到你邮箱里
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