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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
# W+ f- t5 |2 q4 I if <condition> then
1 n# r; Q5 u1 X4 o |5 Q2 { <statement sequence1>;
F0 Z1 @& x; x6 j, s$ s9 M elseif <condition> then
5 R! a/ ^' x5 e# j <statement sequence2>;8 o9 d; ^9 B. u
else
" j- A6 U" u% s( n& G H <statement sequence3>;6 A, x3 i2 f/ O4 t( P# i
end;6 u( B# T2 _, l4 a# H
如果分支比较多,用:9 B* \% t7 Z, k( G# ^ Y
inspect <expression>% \; o! c" w' ^* Z* u; Q
when <constant_list> then
6 @9 s5 ^# j, z* R <statement sequence1>;& B4 B) F& {$ M+ M& ?$ p; g
when <constant_list> then# H- l2 H( x% ^0 V% C+ a
<statement sequence2>;4 j1 k4 z9 r: k1 r c' p
...! R# x$ Z* |+ @- e' K9 w! }
else: l, S* [2 W8 J( _7 d
<statement sequence3>;
! X- w0 l1 O1 ], i0 g; M$ I+ send;
4 M. Q% B& a2 `( s- k! k. B' _( G
4 H. m! L2 [7 q( i" A+ C, n2循环语句2 q9 J# j/ U E# H+ a0 P& F% t
(1) from <statement sequence1>
5 h: D2 h5 |* H! {- O0 [. ` until <condition> loop7 |) _; ^- k1 B' w
<statement sequence2>;5 Z9 W3 D- x- T" W
end;1 a& V! i- ~% d
(2) while <condition> loop. P" A) Y0 Z8 G
<statement sequence1>;+ s$ Y) O o. z6 k; K* o
end;9 {$ R. Z; D8 i0 g6 J
(3) repeat 1 ^3 b# k. x$ o9 ^) F2 H3 S5 O
<statement sequence1>;
9 |/ P E4 I* U0 V/ o until <condition>;* Y, F5 X5 U4 M
(4) for <condition> to <condition> loop3 L7 b6 |: u3 r/ }3 |/ T
<statement sequence1>;
- p4 f) _9 u4 ]- i# r7 `' @' j. S next;
3 ~9 F$ e- }! o. W- j3中断语句2 ?, D# ^# m& |* @7 \6 U. u: u. \
waituntil <condition> prio <integer expression>;8 G+ j+ r7 i9 Q* K0 P' v# v
; N' Q8 ]4 r: W$ A5 y
% Q1 |$ n2 U; x, J/ S$ H0 v# c以上为常用的函数!+ |4 M0 M" B! ^: u- n, o9 G4 p9 w2 S3 Z
还有很多,如有需要我把资料发到你邮箱里 : A3 f2 C9 j( f+ `/ z' a
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