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发表于 2012-11-13 08:48:12
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1判断语句; H/ S- ]' M: ^. U: h
if <condition> then
' H% K, }; b0 P* }* i. k) q <statement sequence1>;" u! ?- h3 ^& A9 U9 M0 P
elseif <condition> then. p. S- l+ }/ Y; a; ?7 y
<statement sequence2>;3 j" T# @9 ~0 p2 L2 G8 f
else % C9 o6 ]' {: |% }8 s
<statement sequence3>;
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如果分支比较多,用:- j, P/ E) U8 Y7 J' o/ i
inspect <expression>
2 P8 \! g/ m( J( ?/ e3 ]; T7 A when <constant_list> then' u! l' s! y/ u0 T1 R( l, B1 R1 b
<statement sequence1>;
- ]& f8 ~; k! q1 i3 C: o, t when <constant_list> then
/ b4 ~" t/ [; t* a& R3 T& ] <statement sequence2>;
" u' D" X/ s7 r; F/ r8 `& Q$ m ...
7 ` U! @8 }, p, _# b else
* }. E' t" {3 C# J2 [% g Y! N4 S <statement sequence3>;
}$ J- ?+ Q6 g: iend;
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2循环语句
# R' f) B) i% U9 X2 p9 P (1) from <statement sequence1>
/ O( w$ L1 Y/ Y6 h3 S( ]) A until <condition> loop
5 Z" _0 t2 h/ O5 X <statement sequence2>;
- z6 R; M5 A0 s9 U' y/ O. R" r end;
3 ^& p# U' s- I0 F (2) while <condition> loop! R0 P& ^& ^" U
<statement sequence1>;1 z3 m6 T2 m r% n
end;- f" C& e! @7 @! E( w& E
(3) repeat # v+ _3 b4 K( V7 e0 _( F# H
<statement sequence1>;5 W3 ~: W+ I V6 X! r
until <condition>;
7 ?$ Z" j4 @! h. S& K- @ T5 Y4 e( I (4) for <condition> to <condition> loop2 j! T. A, a" `0 Y
<statement sequence1>;
( B. D3 b/ P$ w" }& d next;
: P! p- @# t. }: [3中断语句
. G3 y6 g0 T$ W$ j: l: R) l& A waituntil <condition> prio <integer expression>;- x1 I6 e$ W& d+ ^# }
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' {$ l- R: l; V) Z- f% R; l以上为常用的函数!/ G7 {6 T" n9 r. w; `0 p$ }
还有很多,如有需要我把资料发到你邮箱里 3 k5 ?. x) \ B7 {, @: M
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