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发表于 2012-11-13 08:48:12
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1判断语句
& l, n* s6 e T5 ~' V9 Q6 V if <condition> then% q4 q7 b% q0 z6 y
<statement sequence1>;
( e! T a- K- X7 h+ J; o2 h& Y elseif <condition> then
# y& r' v3 x L$ { <statement sequence2>;# }: Z) M% O( \9 b2 _, R
else
) p8 Y; l, s% c; V# ~ o$ K <statement sequence3>;
! N/ Q# p j5 N# C" {6 X. L end;
9 j2 s3 n9 C# s- g8 G W如果分支比较多，用：9 h+ ]8 W/ L0 i/ S4 a
inspect <expression>
$ `% A! S! g7 T C2 A. k& i+ z when <constant_list> then
, D1 Q& S% K2 N <statement sequence1>;
' P$ L# f4 G" _3 ~1 e( ]5 A F' X when <constant_list> then, [) `, J2 b& _/ e- x& N
<statement sequence2>;4 L0 F. \/ B. A Q7 z
...
# `3 |# j% Z( ~: [9 {2 {+ _ else
6 ^$ f! H/ Z8 T" u <statement sequence3>;; O! H$ c( ~% I7 F
end;6 U6 t2 G5 J5 e
" W2 S' d& }! K' U% M' Z" j2循环语句4 C7 O9 b9 T; e2 I
(1) from <statement sequence1>
* M1 e" Y8 f) T until <condition> loop
" v2 e; [) \. a <statement sequence2>;; [1 R+ j* E. q% r) [' y; l7 A
end; e5 t% R! c2 F- p
(2) while <condition> loop# a8 i( {* |% t- l6 C P
<statement sequence1>;
1 s4 @7 l( K6 }. |% [ end;4 E; b! M; ]& `$ G& w4 F# H9 h3 v
(3) repeat
& A7 [' l5 U9 A" `) b8 V1 z <statement sequence1>;
: Y7 g x0 g3 c until <condition>;, u0 d$ J* r( `5 U( Q0 R
(4) for <condition> to <condition> loop
1 o$ l/ d% M' M <statement sequence1>;
& G$ [9 e; L" o& i next;$ `+ s$ |) K3 M. Y% S
3中断语句. c) S; Z/ l8 J5 R* S. k/ J" p
waituntil <condition> prio <integer expression>;& k, J; G" P' ?( ~1 N" e) o
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以上为常用的函数！
7 a( E( n; x, ^- H7 }- R# v还有很多，如有需要我把资料发到你邮箱里 8 _5 Y5 g( z7 {8 S" j9 ^# J/ W d
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