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发表于 2012-11-13 08:48:12
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1判断语句
. y: |0 ^# u. b$ T if <condition> then
. E8 i; w3 g" | T$ `8 Q <statement sequence1>;
9 e: u, I! e; t! _2 y) h( O elseif <condition> then
8 t( z3 o6 J5 l <statement sequence2>;
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<statement sequence3>;
* p7 G3 f" |+ U1 d. U3 | end;
% Y% u S. ~" M如果分支比较多，用：
, @5 }6 \# {1 U! u inspect <expression>
6 Y. z( t! f( U$ H3 C0 ` when <constant_list> then
$ E8 z- u ]7 Q$ i0 B$ r- k: \- R <statement sequence1>;+ p5 M- T/ H. i; V9 G2 V4 n
when <constant_list> then/ a3 z) \+ c% q+ W8 l
<statement sequence2>;. ~% {9 ?$ D# R; P
...
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<statement sequence3>;
& H1 `: {3 P1 M! P; U) eend;& S' v1 S6 w( W( U
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2循环语句
0 B7 \% D# @; Q$ O( h, C! w# K (1) from <statement sequence1>
/ E, w/ u0 |# a8 w$ Z9 q* }1 v until <condition> loop
5 h1 b5 ]% ]/ }: A p <statement sequence2>;: L7 n w4 j" D$ p* D
end;
/ C f9 H; l/ E4 f7 X5 r (2) while <condition> loop
_/ f, l( M L0 F <statement sequence1>;( Q$ \' e N' D9 c# k
end;. ~$ s9 d" D/ s( f! a4 u3 y% T; [
(3) repeat : H2 r* I. Y1 g; `
<statement sequence1>;* A1 R, _9 R& U, [9 {; s1 U
until <condition>;
( \- V: U( e- f1 [' a+ y1 Z2 l (4) for <condition> to <condition> loop
B2 ?8 E- r' {. b, { <statement sequence1>;
% G7 E4 ]* p3 H* n7 ` next;
" Y$ D" J- ?" c! p2 g2 P3中断语句
% S% \" z8 t8 f waituntil <condition> prio <integer expression>;+ P: T. Q, _' j
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以上为常用的函数！* @: n: n( X. l5 [5 x0 r
还有很多，如有需要我把资料发到你邮箱里
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