|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句: R$ {7 Z/ ^2 L& |, @
if <condition> then0 \$ k7 b) B# Y1 {
<statement sequence1>;
8 Y( R, G S- a* H1 A; Y1 c6 Y- l elseif <condition> then$ |- O9 {- s% |4 ] g
<statement sequence2>;! S' s8 t. ?8 X' f/ v
else
$ z* A1 ~& j! L1 }% o- S0 m) w <statement sequence3>;8 o0 }2 Y6 F9 k* k! H
end;
/ K1 H* [* Y' J' ]如果分支比较多，用：
! s" ?# q) t: b5 `! l' U* @ inspect <expression>8 [& |- f9 r' ^, w5 V; C5 a, M
when <constant_list> then9 l- t4 g" X/ { t/ k
<statement sequence1>;
$ `) U) F, D, M$ N5 A when <constant_list> then
" r- u* B. }6 n7 t <statement sequence2>;
! O3 l G! g0 _0 |+ a; } ..." h! J1 W) X* m. |
else* I9 |5 J& q: N G1 E
<statement sequence3>;
# P+ K- o% \8 c/ kend;# g6 t7 ]- T0 L( L
4 A7 V j- ]9 k; K7 E
2循环语句3 L8 J' p0 x2 R/ d$ b! \4 H3 D; f& _/ Z
(1) from <statement sequence1>
; {: Q. I; p* g4 l, A9 J5 [ until <condition> loop
3 Z9 E3 k( [' H! l& x <statement sequence2>;' ~3 k* W4 l2 e Y. q
end;5 n0 n. A* I- r% e
(2) while <condition> loop' r! }! I5 U2 m$ k* D' _
<statement sequence1>;
" t6 m! \3 B5 K$ I" L end;
" L. ~: i5 U. |- b9 N7 d* ~6 q (3) repeat
; ^) T5 p3 j/ |2 K* j/ y <statement sequence1>;
" U+ k. J( f5 i$ E( r" v until <condition>;
! E% M: D* u3 c) [! V (4) for <condition> to <condition> loop
4 H( J# b. N& H" ~. ~+ w <statement sequence1>;3 O$ y3 i8 V$ Y" c6 u. ~+ V
next;7 w8 y- y# o8 m- L7 w; m
3中断语句
; \" M. \& M6 @. c waituntil <condition> prio <integer expression>;( S2 ~" S3 |& T2 N# b, z5 f
) L% K' N4 U% D3 U1 F9 @8 B% i4 K$ R! ^! H* h; {' l; U
以上为常用的函数！
! ]/ q8 E$ l( `还有很多，如有需要我把资料发到你邮箱里
5 ~ K) e. ]; K: b* ?/ s( H& R1 S; u6 g7 @+ p( ~ q8 K* g
7 W0 S. W" d) S+ S$ D0 D1 X$ y0 {' ^: `, R3 S4 s) g. e ^0 K
# b8 X9 G0 d& S1 _$ F
: `& W6 m3 b3 D) t; x8 s+ t; p( M, b# x& p$ z3 Z
0 c& R% c; f7 Q- C/ H* }
! c2 s7 t. m, O Z$ s" m% k& Z% w# B& s
$ Q8 o! t3 @: T6 V
|
|
[复制链接]
