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发表于 2012-11-13 08:48:12
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1判断语句
, B) I3 \ C8 v; d2 x7 h) j& u. J if <condition> then$ K9 a) t( M2 g8 m! O6 @
<statement sequence1>;
& s: Y6 ]. `, ^+ o+ n: U f( G elseif <condition> then
% H( y6 F: Q( g) v2 p% g9 U7 c <statement sequence2>;
4 {3 m( j; _/ g v* J* F' b( C else Q4 c) Q- z. |% b% i
<statement sequence3>;
" Z' r! N0 N" q( I4 j7 I3 `; B end;
" a# \1 n8 g7 s% B如果分支比较多，用：
3 ^" W$ r9 c/ J0 x inspect <expression>, g9 L/ T: x2 C
when <constant_list> then, W# d# V' Z; y
<statement sequence1>;8 Q2 t) C# d9 N
when <constant_list> then, s$ b& V7 e: l; ?7 b# Q3 h
<statement sequence2>;
( E1 p a( L" t9 p2 z, Q% m ...
5 n6 E. ~4 y! W else& G2 \: j* B: V- j0 o2 x
<statement sequence3>;' s: I. F$ U! f4 U. b9 N) v; l
end;7 f" W5 M1 k2 s' g' G
+ a9 G: G7 @3 w* e2循环语句) n, s8 c9 x$ `# a$ }# e
(1) from <statement sequence1>
, u* j. l7 G; Q* R! q until <condition> loop, i+ f( a' l7 A3 X& q; s& b `
<statement sequence2>;
& K. ?( F$ J( B& v4 l: t8 b end;* t- ~, q; r# v( m( o0 R
(2) while <condition> loop
( h) t7 \4 I7 _) s2 W8 D <statement sequence1>;& e# `" U: c$ F! Q
end;: E) D, m* ^ g8 u
(3) repeat ' n+ B& l6 N. s% c0 ~1 x- I$ X
<statement sequence1>;
$ }1 q. \+ u( S' N- z# U+ U" b0 u until <condition>;
2 n- q8 K% j& }! b/ i/ d5 i (4) for <condition> to <condition> loop3 t# o( W9 ?1 k9 {$ c ^
<statement sequence1>;
3 K7 v4 T# Z7 m' X5 v" h; n next;
* a E" }) P3 p- M9 ?9 }& o* s3中断语句* B' m8 T3 J f$ j+ J; p
waituntil <condition> prio <integer expression>;# \0 O! Q8 E$ W( p
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以上为常用的函数！$ s9 M$ Z4 Z# n& M, Y1 \
还有很多，如有需要我把资料发到你邮箱里 / @# k$ B" r: p7 ]
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