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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
; G3 B, W- l& u3 x if <condition> then" Q/ r. h( Z/ R$ Z1 y" B1 U$ t
<statement sequence1>;4 e: q( K& m% K# w' j/ M$ D
elseif <condition> then! \2 b9 _# O4 I0 @9 M
<statement sequence2>;, j+ c& e# T3 W& U. W1 F5 m# g
else 6 l2 v- a' A/ H' \
<statement sequence3>;, {$ ]& C/ Z! w3 ~: y! j; r
end; t0 R C- f& P; r& e
如果分支比较多，用：
; ^" A$ o$ S/ K( n) W: ` inspect <expression>
, v! r0 ]3 s# M+ s* b$ L2 y6 c when <constant_list> then( `$ T7 M. ] \. W6 Z
<statement sequence1>;
% J4 M# @7 t' q( ?; l# F0 _: } when <constant_list> then
1 O8 A+ q7 q( U$ _. R <statement sequence2>;
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else' k# Y: Z' j; Q% \7 K6 F6 d& X! l
<statement sequence3>; d" P* d; `( I1 l: [
end;
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2循环语句
6 y" S; z) V+ ~5 l! `& R (1) from <statement sequence1>
( x% ]2 g- z8 v3 L9 y until <condition> loop
8 |6 e) x" D X0 R <statement sequence2>;
! l) Z( [3 k# q6 f! s end;
) t2 S) `& ]2 h/ h* i (2) while <condition> loop
( [5 }* N- b8 J& U7 {: Q <statement sequence1>;
4 X. |# x+ [, W1 J0 A' G end;! v5 e5 ?5 g! c9 k8 x1 E) V
(3) repeat 4 R; @& B1 e7 E5 _
<statement sequence1>;
) Z' Z6 S( o' ~5 t0 k" b until <condition>;
$ O' V0 d- A! r. Y, C: g (4) for <condition> to <condition> loop
& T& k9 _2 }) j& d) O <statement sequence1>;
. x& N! w' s2 f% m0 p next;
3 S, Y1 P) ^0 g3中断语句8 t# }! S: r! f0 X2 O3 a
waituntil <condition> prio <integer expression>;
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# {/ }, w6 b+ g以上为常用的函数！
+ Z# }. f! S( s- s9 p, \4 o; z还有很多，如有需要我把资料发到你邮箱里
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