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发表于 2012-11-13 08:48:12
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1判断语句4 ~+ T! `1 A8 S. y7 I! B6 M5 M+ T. M
if <condition> then
4 E! R0 a% U2 G2 n; L <statement sequence1>;
: a7 E$ j% q( T6 e elseif <condition> then2 n! {: [7 U3 `4 N& L! K
<statement sequence2>;
0 `3 w, a. X) C- s9 L9 R/ J4 Q else % p& P( ~$ b3 }1 I
<statement sequence3>;
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如果分支比较多，用：
9 l$ f) q) i, @* ~% w inspect <expression>
3 a2 H! H- Y/ j8 r- G& O1 m7 e when <constant_list> then T/ b7 C: T& ~# W$ D
<statement sequence1>;
: t) S# D0 _" B3 ?! x" F' ^4 x. C when <constant_list> then
/ b- N( }7 ~4 r2 W# o+ Q <statement sequence2>;
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else" ]. F7 t; ?2 m7 U
<statement sequence3>;
7 O7 K& ]$ o5 ~. ?end;
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$ |* Q7 P# w. r1 u! O4 Q. G/ H2循环语句
% D* F. D9 X1 ^5 Z/ N1 Z1 P (1) from <statement sequence1>
* Q" D5 D% y, _& w! p until <condition> loop
3 F: Z/ {1 L, p/ V0 @3 I G: C+ n <statement sequence2>;; c- z& }; l. O" v
end;+ x- c; o$ V( \( |- J
(2) while <condition> loop
3 P9 \2 \% s8 k2 ?# Y' p1 I7 h <statement sequence1>;
0 I& X* S( h) m3 h, l end;
" ^ c7 }. ~5 l (3) repeat & O& h; z3 Q0 j
<statement sequence1>; o( w; r5 P- }$ r Q% w; t* g
until <condition>;
9 \, [; I1 n3 B, j (4) for <condition> to <condition> loop' n7 w: y" P& Z" `9 j3 e
<statement sequence1>;
9 n1 f% l- S4 i2 c- S, `, W: p next;
( `# E0 }4 Z8 x( E! e; p3中断语句7 M; h0 z m% R; G/ M
waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 B; P9 k2 w& q
还有很多，如有需要我把资料发到你邮箱里 5 m7 E4 o& u: b! v% ~2 U: d7 f' \$ Y
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