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发表于 2012-11-13 08:48:12
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1判断语句9 L$ R1 ^/ j- L; m; y
if <condition> then
8 ^# \$ B) G& c- \2 I <statement sequence1>;
+ y% ?5 G+ A4 n& x( f+ @4 Q elseif <condition> then( U! l1 ?7 s$ f8 J- Z; x
<statement sequence2>;% n; R4 b" d$ t# e0 ~: k9 d$ P
else ) T! J4 H( \& h# h2 @
<statement sequence3>;
! y" k# g& u) q; J end;
# |0 D0 O, i; g* H3 N2 b' o如果分支比较多，用：
7 y3 E8 N1 A/ t# B% @0 R. _ inspect <expression>
9 I* O8 p7 \+ o. e when <constant_list> then
3 j* v6 I X# n1 Y& n <statement sequence1>;
W1 p( l7 x- @. W& C/ j when <constant_list> then0 r4 ~) q* O0 j! i" p
<statement sequence2>;( q% }/ g* W) ^$ j
...
: C0 x" K2 a$ h# F: o+ w: ? f else
3 W% f! X( S( O& Y <statement sequence3>;" t( Y$ _- K7 u) _( \8 m
end;4 Z) |! p# E* d$ w( `- g" G# X
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2循环语句& m$ M" ?3 r" g8 H8 ?+ {
(1) from <statement sequence1>2 n z" K% j/ N0 Z
until <condition> loop4 Q! g) h( g, I* N" P" E; y& G
<statement sequence2>;( p: x* _, n( ]. A- W! a
end;
. Y' X$ z1 M8 x Q (2) while <condition> loop% K& o- r( Y. ?0 x# u
<statement sequence1>;
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(3) repeat 2 \$ K( F" `0 i6 w
<statement sequence1>;. d/ _% i6 P: l- u
until <condition>;5 @4 n$ K" ~" [7 F! A; i* A5 n3 p
(4) for <condition> to <condition> loop( P3 {: y0 h& S3 O# r, B' t
<statement sequence1>;1 G6 O3 J- i6 ], M3 d
next;
5 J/ y% D) Y/ H3中断语句
1 B# e' Z: `7 ` waituntil <condition> prio <integer expression>;
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0 L6 q% {7 Z6 i$ q以上为常用的函数！# `0 h, c4 N. \* h8 z5 F" t
还有很多，如有需要我把资料发到你邮箱里 . m, r$ b& V9 R" H `( Q( G9 j
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