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发表于 2012-11-13 08:48:12
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1判断语句
1 ?4 L. x( a* P9 H4 S6 @ if <condition> then
0 i0 ^, h1 V* y, I, r7 j8 [. J <statement sequence1>;# R2 K$ r D% L8 r1 j# C
elseif <condition> then
! t3 {9 p4 y, D- Q <statement sequence2>;
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<statement sequence3>;* A! g5 H {% ^: Y1 t8 t
end;
( @9 ~& w$ n y5 O如果分支比较多，用：' B" F ]4 N! f& u& q+ k( j8 _
inspect <expression>
/ K2 L% M* J) C: V when <constant_list> then' }' n9 C# Q/ x0 n9 q9 d! P
<statement sequence1>;
+ D& x: |7 z" D when <constant_list> then
1 S/ z3 t" S+ R5 j <statement sequence2>;+ {$ V. {/ v9 L" g, C6 f
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else
9 G7 S: K: C( m& b1 A <statement sequence3>;6 u. \+ |$ H7 e& t% ?4 A, N5 q$ M( V
end;
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% ?! q; w) M. @ S! K. E3 | G- r2循环语句
. r/ a/ P R" U+ }6 A; F5 I (1) from <statement sequence1>, P" r1 z+ Y: g. E% J# p
until <condition> loop
' t/ P6 E: ]& n! a <statement sequence2>;# @$ v" \+ g" |1 l
end;
% A# ]4 K5 _! P x (2) while <condition> loop1 f, f: n9 C' e2 P( A
<statement sequence1>;
a. i8 O; b3 W8 w6 g8 r end;
* V9 z- [2 l8 z& _5 E6 f0 N (3) repeat
8 y& [$ f, j2 @: w7 Y <statement sequence1>;
! |6 {. h! m9 T until <condition>;
' w& g( p6 x$ P6 S9 { M9 Q, _ (4) for <condition> to <condition> loop! U1 w& k) [$ U" Z I4 C
<statement sequence1>;
3 P+ b' ^3 ?" O, W. l' ^$ Z" E: p next;
% U! i$ O) y+ a( G0 i$ Y5 U3中断语句
6 R3 Y$ Z7 u& G! g8 m7 v waituntil <condition> prio <integer expression>;: k# ^4 S. P U8 p! U9 ^! [5 s( d
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以上为常用的函数！, k4 _3 c1 I3 J* Z7 g
还有很多，如有需要我把资料发到你邮箱里 ' v( x" E; D: c, S! T; U
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