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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句3 c. z6 P! B) s' A, o
if <condition> then% ^5 I2 G/ y; A5 V( W u
<statement sequence1>;
! @ j* I2 w/ ~/ _ N5 N1 b2 |4 g elseif <condition> then/ ~, V B5 E' R0 j
<statement sequence2>;6 L+ ^- F$ [* c9 r
else
5 `+ y" M$ o2 s+ ]0 E <statement sequence3>;3 Y/ i T) j, |0 R0 a( ~
end;
0 s5 j9 l9 v4 h0 X# @8 o( N如果分支比较多,用:. j+ f0 j, m; `
inspect <expression>0 z2 }1 U( c, C+ D( d4 _9 H5 T8 Z
when <constant_list> then: N/ I# x2 j: [3 d( t7 q# X
<statement sequence1>;; D* k- p, C# Y; }5 n0 a
when <constant_list> then4 A7 V. @9 d0 x. m; p! `# N
<statement sequence2>;
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else
+ ?* R8 x) P% H' E+ d# w+ ? <statement sequence3>;
2 G1 X6 a1 p) t) @5 m+ Yend;4 p- {+ E; ]$ J( j1 q" f, O% v
. w. c, F& j$ L4 ^+ k e0 A- d, o0 v2循环语句
+ t# Y5 l h3 L' M (1) from <statement sequence1>
$ {9 Z9 B- j+ [) ^ until <condition> loop+ i0 Z5 Z4 F5 }) c
<statement sequence2>;
" o; r4 g. V7 y' ? end;7 U7 C ^; ^% Y# A# l
(2) while <condition> loop- V. y( |3 W+ o+ u( t8 F1 o
<statement sequence1>;
7 q4 z& y1 T, i; w/ ? end;: i" |2 q5 S! p: x6 f9 Q
(3) repeat
, `! _+ P3 P9 C$ T V& A <statement sequence1>;
4 ^8 l% q2 ]4 F9 l# C until <condition>;% b7 } `( b0 N. g. \. ~, r
(4) for <condition> to <condition> loop; G. N) r5 Z5 w$ Y
<statement sequence1>;' U! M0 S1 V; d: o- q. c
next;) G5 K& ]' Q+ f$ E/ [
3中断语句' n0 n* `! Y) r8 P
waituntil <condition> prio <integer expression>;' E; ~& G: H |
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9 F, ^" [4 ]' |+ U4 z以上为常用的函数!$ o, L7 y: N+ J& @
还有很多,如有需要我把资料发到你邮箱里
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