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发表于 2012-11-13 08:48:12
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1判断语句
% D5 w3 j0 ]3 h5 T, o* O if <condition> then3 g/ e: f& @* q+ d: O- ]! X' T
<statement sequence1>;
9 R) F9 n1 _7 B1 A: c, H0 A elseif <condition> then
- i1 @; [ l$ S# o0 p <statement sequence2>;( k0 y" q3 e( c6 l0 D
else
* X8 ~3 ~% E5 V8 [, \. v4 t J <statement sequence3>;
' l) F2 Z. f4 w( R8 d) J end;; n$ V+ E" g; n% K4 Q6 n( i. c
如果分支比较多，用：
- k' p& x2 d5 p- _, j inspect <expression>
2 c$ a& F4 V: z6 H+ r5 n+ q7 N( | when <constant_list> then: g* ]. y7 _2 B0 i5 O, N/ T+ x
<statement sequence1>;9 l' ]8 ?9 f: D0 X# }& D( I
when <constant_list> then) Z" Q5 P2 X$ l* t7 M1 }
<statement sequence2>;! |6 _9 \8 O* O& k3 T% O4 f
...
! Q! x* e- \; k: W) i! a else
3 v- _, F/ n! K; Q! j3 } <statement sequence3>;4 E( t& p* s' x6 r6 Y- Y
end;" o! O0 {# }( j) w' ]
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2循环语句7 M( H" f. }) A# g, Y( c u" b
(1) from <statement sequence1>
* b: U" F M' N F' V0 l' C( j until <condition> loop
$ Q# r- t4 R# N" i& X, t/ b0 Q <statement sequence2>;
. v0 b3 Z- ^; Z7 y7 C& j9 { end;
3 B. x$ K7 r* L1 c2 K) @4 Y" t6 c (2) while <condition> loop8 o# I m: g( @% _" u, Q
<statement sequence1>; q8 x( Y0 ~/ O9 j! ~
end;- I3 V& V Q6 ~7 ~: I/ s
(3) repeat + @7 K! t* V7 ^, ?, ]2 V1 X$ @; e
<statement sequence1>;1 a" `' M+ }$ j: x& ?
until <condition>;
1 {, M3 Z: t6 w4 v) k (4) for <condition> to <condition> loop
8 {) u+ ^! U4 p5 U <statement sequence1>;+ y! }( i9 X: w
next;3 b0 Y' `$ y( Y* P; e4 n
3中断语句2 }+ k: H' B6 g. l( F: v- j
waituntil <condition> prio <integer expression>;7 ~# n: M, p8 r1 v. u4 `' ~$ `
( y" @3 p6 F3 x- A V. ^
5 J; I$ {3 ^8 K# B! ?以上为常用的函数！7 @0 \) D; o$ l
还有很多，如有需要我把资料发到你邮箱里
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