|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句+ W4 N1 n# l9 M
if <condition> then' `+ D+ @) O# W2 p
<statement sequence1>;
7 \% Q1 n6 D. l$ j elseif <condition> then1 {' ?9 {+ j" m# B
<statement sequence2>;/ |4 X- u' g: e/ C. z1 c. d
else
+ u3 R8 ?! `/ l) P- [ <statement sequence3>;
/ ]' b5 z3 z1 _" [9 f7 b* [ end;
7 f" p! T1 f8 |如果分支比较多，用：
% l+ {0 h$ X9 W) L7 F5 p inspect <expression>! r+ s/ K% I1 A/ d4 d4 G
when <constant_list> then# k# r% k9 _" R6 w
<statement sequence1>;" f: F: u" a* l/ O, I
when <constant_list> then' ]. [9 ]& k! G* {
<statement sequence2>;; h3 E G$ u) W& m [ Y9 w
...
! I1 T" h/ H( g else
4 Z [1 ^* p2 }/ m <statement sequence3>;4 e) _" L" F9 E3 f2 e( l
end;6 x2 E" ?7 B) |& F- q( w
+ [# S$ }+ k( E
2循环语句. b8 Y, v- f( M' v+ }9 S( b) k' u
(1) from <statement sequence1>. z [+ C3 k- @& S! B7 ~: B8 W
until <condition> loop
$ E6 s* X4 v( V5 s) ]$ S, r( } <statement sequence2>;# ?3 d2 ^" {4 R3 \- ?
end;: D* d- t& O: x9 W/ q, A6 k6 A
(2) while <condition> loop" B( J5 H O& ^- v5 a1 W4 O# q
<statement sequence1>;& s' M- Y2 n+ x+ |/ {& ]
end;
3 i5 U1 |# w5 Y/ g6 y- d2 | (3) repeat 9 @3 E5 y4 c" Y4 E5 H- J7 g$ F
<statement sequence1>;
4 ]8 a5 b! a2 b until <condition>;! t% i9 M8 U. O+ P- \9 {3 T/ `
(4) for <condition> to <condition> loop5 x4 U$ _$ O7 h; [% W6 A
<statement sequence1>;
' K1 V& ]& q) H% L, D next;# W8 y4 N x& ~5 _' _& A
3中断语句
3 N/ A$ q( F! z# Y' H( g/ e" J# {. u waituntil <condition> prio <integer expression>;: F H l+ I& j2 U
$ ^; X1 |' F& O5 N' Q# D
; L2 `# H% M Z# D以上为常用的函数！! D6 _* | a$ K, o9 W0 I
还有很多，如有需要我把资料发到你邮箱里 r' T. T( e# n/ q- P$ S Z
/ m0 w$ K1 T4 d9 B- g0 B) ?1 l$ x- f1 u, `7 n& n2 V
- R6 i$ v* b3 I3 P ! G9 F8 l: u! l- P1 h' a
v/ ?, k& x) t9 `1 l
2 E& U2 P1 J: C! Z+ g
6 \5 J+ ]! g& x. w# r6 i
9 {2 W/ x2 q$ R
" p, z! b- k1 h
6 R, X# x" N$ U( R* U) e" |" A0 |7 f |
|
[复制链接]
