|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句8 J" J/ ?& c/ y
if <condition> then% J- ~: l8 G k
<statement sequence1>;
( C) r# V9 Z* n elseif <condition> then8 o& m- J- @) |! l! I f
<statement sequence2>;
9 r0 y+ }/ M8 S% Z. W2 [ else : ?$ @8 f" q. t8 S
<statement sequence3>;) ^6 p/ I9 |* \) i/ O9 o$ m3 |! g
end;& v- {9 M' }- K8 s8 E* ]( z C
如果分支比较多，用：
" A0 m: O" d, x! }% D2 }, \ inspect <expression>
4 R j& O6 z K0 k when <constant_list> then
/ k6 A, Z8 A: ?3 y) g, u <statement sequence1>;
- ?" |# q9 J i when <constant_list> then
- f- y0 s1 `. x# R0 i* o <statement sequence2>;6 W1 ^1 J- g/ v& U
...5 Q, t+ e+ h5 G. W% T4 h
else
' O6 l* B+ C* S, S. n1 Q; ` <statement sequence3>;5 [4 d/ B a$ G6 b
end;; ^9 p5 K$ s0 x# s' |- E" l+ t4 V% S
! U; l3 b+ C, r1 x2 [+ T$ I3 p
2循环语句
. G- c& D% \9 A% }" ? (1) from <statement sequence1>
! J( ]& }! K1 c8 F: \. q" G& O/ p( H until <condition> loop- y4 f% f0 G" z; E) C
<statement sequence2>;
2 J, q* A' a8 r( ` D end;! \8 R. L# E( r% e' I/ q
(2) while <condition> loop% o! f' S3 _8 O! o
<statement sequence1>;
1 L; X# U( u3 l/ F% P) P6 d end;: A6 X h0 I. t$ B$ ?
(3) repeat
! |0 ]4 z- N s <statement sequence1>;
i/ o. t) r1 U k; M' |1 v until <condition>;* K) @1 q+ I5 L8 i
(4) for <condition> to <condition> loop: e3 M( R( E* K6 b1 Z$ F
<statement sequence1>;) ?/ |# g) ]4 l) O
next;; u6 Z! M2 v$ J- S/ _
3中断语句
" ^4 r8 [! S# u waituntil <condition> prio <integer expression>;0 u6 o8 ?% L5 ~+ ]/ R" M' Q) m
2 d- ^" r+ {4 ~9 v/ a& @
7 D3 h5 ~) z+ N2 v- Z
以上为常用的函数！
* B( b5 p$ r, T还有很多，如有需要我把资料发到你邮箱里 / B. g4 S( I5 Z4 y. F
, d; `, L* P( M9 D" x% c+ L5 A" _. }3 ?, J# ]3 n
1 z' k3 ^# I4 y1 M" j
/ \# l7 ~, R" a$ \" h, f$ B
& E; b _& Z! k9 u( U# m! W& |0 N! E; Z D5 i
0 r. K9 v7 m* `+ p" l7 E# |: t1 @: C2 l- V& g8 s3 {% L
, Z2 Q9 S" k, ]* T' ^ - w& I% d2 B3 s5 A6 X3 ^
|
|
[复制链接]
