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发表于 2012-11-13 08:48:12
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1判断语句
& ?2 m. J, e% {' L if <condition> then
+ u |, m3 i3 U" x* L0 ?/ t$ n <statement sequence1>;
& F+ |8 b5 G$ l, Y" A' R elseif <condition> then
! A1 @. y5 l6 o <statement sequence2>;
3 h4 A0 E2 w+ g( z9 Y. W else
1 ]+ |# A! A' w& b9 M# T <statement sequence3>;9 o# L7 y, ^) B6 e5 D8 m# Q( d; {
end;8 y" [! i1 J5 M; L
如果分支比较多，用：# }9 U3 m0 ~* g. f$ _
inspect <expression>
( U4 `; F: A6 n j: b when <constant_list> then6 I O3 B) m' B7 S' i5 O
<statement sequence1>;
. J! k* }' M/ q+ ]; n5 m when <constant_list> then% ^! \; h5 N: Z
<statement sequence2>;
* r- U& E8 ]$ d9 g4 H2 ] ..., y7 z* n ?" L
else* }; d, g9 |* P- b1 E
<statement sequence3>;
' W6 {% a' z, b& W' [9 {end;
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; z" d# A! c+ ?$ |' e0 y1 U2循环语句% k+ b: i/ ^( [; r+ a. A- F- y5 a! {
(1) from <statement sequence1>5 l- Q6 S- S- s$ W
until <condition> loop
# v( {& K6 d0 J$ x <statement sequence2>;
U3 k: F7 g" { end;
, B! b9 G* W" {/ Y( w4 n: \ (2) while <condition> loop
J' G5 z, M; q4 S <statement sequence1>;
" M2 r1 k- U' b& G6 K7 L end;
/ N0 ]+ V' a. L( v! j% i (3) repeat " x, c1 d5 Z3 @8 [1 b0 P( Z
<statement sequence1>;
: {( K7 g/ h( J) X+ Q until <condition>;* F3 S: C# k: [ e0 v& Z1 Q: D
(4) for <condition> to <condition> loop
4 H# a* P0 d- g <statement sequence1>;& q) X+ W. l+ ~4 Z2 V7 O; I, i
next;
% V9 Z+ n5 l! E3 }7 {2 G3中断语句/ y5 o" v6 y o( M
waituntil <condition> prio <integer expression>;
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以上为常用的函数！; K' d/ Q5 ?6 g" ~& k; I
还有很多，如有需要我把资料发到你邮箱里
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