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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
: }, i& o _$ e% \7 p& I5 m if <condition> then
/ r5 _0 d ^" P2 c0 p <statement sequence1>;
" _ `2 s F. @( z7 ^, z& ^7 u elseif <condition> then% Z8 O4 _: n# e1 d1 h0 ~* [' x0 @
<statement sequence2>;! T) Q( Y s( n9 d
else
. P( |* r1 P& b: N+ C7 b ` <statement sequence3>;
$ O$ L) f' p5 w$ { end;5 A- j3 J# r$ p( m1 n- g/ I0 p
如果分支比较多，用：
7 ^3 S: e7 N# b inspect <expression>
r, K' E* T" [6 h when <constant_list> then
: g9 K/ m$ x2 I/ z, ?! p <statement sequence1>;: I7 u9 [( M# S, ?6 ]
when <constant_list> then
& T& b+ G+ E7 b5 c8 M <statement sequence2>;
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else
( r/ O' j' x( o. J: P' H, } <statement sequence3>;( m/ H3 [# Z/ f& ^& K! m$ ]! ~9 r4 z
end;
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2循环语句
$ u0 h1 E) f. L% i- I% A; c (1) from <statement sequence1>
* H# `9 Z$ ^$ ^1 ^6 B! ]6 ^ until <condition> loop
& f6 n3 M: \, D5 v <statement sequence2>;
9 ]& N7 w4 U+ i0 N# W end;1 c( F' F5 `0 @- R
(2) while <condition> loop/ ?* v; C' T( p4 ?# S0 E+ w
<statement sequence1>;* D7 X; h, U8 S. }% |& X7 ]) Q
end;
% k' t7 z3 v0 H, h& x (3) repeat
7 ` {0 x# r' B3 P( T. O% V <statement sequence1>;
' I% `" A4 Q9 L! Y# B, C1 j9 K7 \ until <condition>;/ l. c3 W8 N) b9 U" g
(4) for <condition> to <condition> loop! o0 B ]* A/ |, k% j( `
<statement sequence1>;" a9 P$ d7 A% r7 n
next;
9 r9 L5 q9 ?3 S3中断语句+ @( H& f0 h8 U" D; [2 f4 a- F
waituntil <condition> prio <integer expression>;: l6 c# j6 I3 \7 v# K; R
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2 V# p d6 r4 U1 o以上为常用的函数！1 z2 {2 {9 J. w1 }+ q7 i. Y
还有很多，如有需要我把资料发到你邮箱里 , ^: g9 u& j5 {3 e
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