|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句6 S2 B% {" v ~: T
if <condition> then
# [ H( c& E4 Q7 x. Q/ ?) a <statement sequence1>;' |0 A- r0 V* o% z, n% `2 @
elseif <condition> then; h- _3 {: M$ u5 M% e- r
<statement sequence2>;
1 T. K& F, l8 ^* J/ [/ a. n( w else
7 X9 l( f' R: \& N <statement sequence3>;
5 y c) F/ Y+ [! ^% |3 b) F1 i end;4 S9 ]* d6 k- w+ G+ \0 Q* w
如果分支比较多，用：! H" s3 P# a% n
inspect <expression>
* j ~+ l9 y8 [: |( l when <constant_list> then
$ {: t& k0 V" R6 t9 e <statement sequence1>;+ _- r1 \" L7 H0 `
when <constant_list> then6 K" [0 [% y6 c2 i! j* P/ v. H
<statement sequence2>;1 x% B" A4 K2 G- R V& g
...& b" u6 C. s: A$ ?
else1 Z/ |1 T7 E. x; y
<statement sequence3>;) T- C4 w4 t; C5 e! w" a
end;- T' t) a O' D2 g8 B# h: J- F2 F
8 g, K3 l1 z7 h! z2循环语句6 y8 }' W3 i/ `9 o
(1) from <statement sequence1>
( h+ y7 ^0 i& R1 z/ C+ o" O8 u until <condition> loop
& D, W0 j" l" z, `6 P+ b! U <statement sequence2>;/ J/ w4 r% b7 F1 i$ ]- P$ }7 ~
end;+ K8 {3 ^+ W# j4 I) w& V \
(2) while <condition> loop W6 F) e* M w
<statement sequence1>;
[6 A) e- `. t4 L6 W% c end;( A( T5 L- U- o/ Q/ o
(3) repeat
* w4 S# I" P& V$ J <statement sequence1>;! ]9 e* a1 A8 U# P [3 H" I; O
until <condition>;
; {2 N% S# y# g0 U6 _ (4) for <condition> to <condition> loop
8 c2 n$ j1 C" f- c/ K <statement sequence1>;$ S: Y7 N" v* C) i! m
next;
9 }' f* u" b K; W9 D' ]- C3中断语句
8 e! C' s0 d" i1 k# o6 z waituntil <condition> prio <integer expression>;
2 Q" h& t" |2 q6 j# L& L3 V8 F3 _! \6 o
) s, ]. c/ m% M+ {以上为常用的函数！
2 G0 Q2 g+ Y [% H还有很多，如有需要我把资料发到你邮箱里 $ ` G8 p# ]6 Y {5 {
3 y7 m) P' M2 N+ ]" K
! y, G' G* g* E! I% ]/ B6 h; e0 i1 ?2 |3 N) p' L
) M, O9 d3 m; X& Y M, }# q
5 T9 D9 _+ z c' R- Q( u9 S6 n( k* f( n# ^, o: Q7 K+ a- i( X8 u0 M
8 `1 _- M I$ O6 ^. \; I0 q7 C
% x" @% T/ N( q7 I _1 {2 e2 r# G$ R# r8 m6 t
0 q0 B' |; Y- k% q2 ?& m) w! C |
|
[复制链接]
