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发表于 2012-11-13 08:48:12
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1判断语句
2 \& U" ]5 N! b, B, n. k7 P if <condition> then
9 b5 ~$ J- y, C/ ~/ `8 o <statement sequence1>;5 h6 ~% B$ f4 o& r8 s
elseif <condition> then7 o& d: t( s/ M3 r# x( S# E. P- e$ D
<statement sequence2>;' C& |; E1 [* s; w: s
else
8 X7 k* e( U | <statement sequence3>;
9 u% V x. b: c! a: Q end;9 l. @$ D4 P- v& I6 `9 x! g
如果分支比较多，用：0 p/ _9 {. \( w
inspect <expression>- N# q" @' ^3 D6 G u
when <constant_list> then o8 b6 h5 I5 Y) T- a
<statement sequence1>;
3 Y7 {# r7 R( k; b7 Z* V when <constant_list> then
9 U2 l9 O5 c8 H) e <statement sequence2>;" I2 s" b# C& r- I+ ~! Q
...
' Y2 i- s4 M* I) P else
9 t0 P) j Q$ j8 I <statement sequence3>;2 v* U8 G y' T* W. H6 R! M6 T
end;
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3 O) V8 Q( d) C; _1 o$ _5 f+ N2循环语句
' L* ~9 d' e. I6 h1 ] (1) from <statement sequence1>1 Q, j$ t" I: B
until <condition> loop
& \) ?9 q& u/ R) i <statement sequence2>;
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(2) while <condition> loop. S9 b* _9 l( B! |
<statement sequence1>;$ e# ?/ l# g: M Y. s
end;3 S1 S* Q5 y) K. S
(3) repeat
5 B, f) ~% z1 v <statement sequence1>;5 R l, B$ t/ K! g' R5 f( }
until <condition>;0 Z) \9 `0 C4 Y7 R( b
(4) for <condition> to <condition> loop
6 j+ {7 Q. k8 B4 V, c! @: _3 [ <statement sequence1>;( z- L! Y8 f' p5 f( ^8 U* j5 S: O
next;4 Q" W0 d5 k" s& z3 C) c# w
3中断语句- p+ x4 d7 }1 v% j) M# c- U$ E$ ?! \
waituntil <condition> prio <integer expression>;) N1 B1 H5 M% d* x
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1 ^! ]8 ? P! }% G+ x- P; Y0 r以上为常用的函数！6 s. d2 B- S, ^
还有很多，如有需要我把资料发到你邮箱里 x! w* v1 }/ F- j) U& H5 q( f7 z+ e/ @
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