|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句/ _5 h8 w7 i, c/ i# D
if <condition> then
/ N) ]: i" |- Q <statement sequence1>;9 o& W7 z5 F* F M
elseif <condition> then
5 x7 C! Q; v0 |' ]( ^$ r3 R6 T <statement sequence2>;
( q5 _6 { t! H4 F5 G else
+ N& Z/ j9 q9 h <statement sequence3>;0 X* l3 y! B9 J
end;
) Q) x& |) q" Y* h4 v: Y) j如果分支比较多，用：' W8 S6 n1 Z+ S# m
inspect <expression>
, G& Y8 ^6 L& z( a9 a when <constant_list> then6 W- l' o! g' B' t4 I* g" f1 K
<statement sequence1>;* c6 b N- k, M1 _
when <constant_list> then/ T7 v. t" g0 y3 I/ ?4 t
<statement sequence2>;
; r+ ]0 M, ?$ q( R: L( g ...
7 k, x4 y4 Z8 F2 L, M! Y else% l m9 f8 }: Z& D
<statement sequence3>;% U1 [! M. M j$ v7 `$ Y0 T5 i- Q
end;
6 T3 L0 O' X9 t* G% c! |
+ K1 m4 V- r( [% h. c- I; Y1 M2循环语句
! b- D6 W6 \! K5 ^/ P/ N% H. w (1) from <statement sequence1>* k# X g9 E( F
until <condition> loop
- Z j6 A7 l6 r C& w <statement sequence2>;/ Z/ n& y& M- v3 k
end;6 I; z& ]; `4 E G! G: c7 l
(2) while <condition> loop
1 w* Z A1 g# F0 _( d2 Q <statement sequence1>;
8 t; a' n& N$ K/ p3 Q& P9 Z! B$ U- t. E end;
$ A: s( t* f& L+ b& C6 N (3) repeat 9 p% S0 A- A* j
<statement sequence1>;! b0 @1 m% T9 N3 m" C' ]
until <condition>;
1 E+ j0 k! R% ?: p+ V+ U3 q# [ (4) for <condition> to <condition> loop: F* P0 Y$ ]* _8 ^ D% G
<statement sequence1>;
. m6 ^( T q; Z! ]8 J8 I3 ] next;; |& Z6 I* f% K& e2 i( r
3中断语句) ], o3 G& d' T6 J, n
waituntil <condition> prio <integer expression>;/ o5 ]$ h. s% D
) ]3 n6 t7 n4 B4 ?( r
, m" ?" |1 ~2 J% T以上为常用的函数！
2 D/ b! e" f. [9 Y* u. S# N5 {* r还有很多，如有需要我把资料发到你邮箱里 + u) F+ C5 k/ M) U2 _+ w9 j% z
' {9 Q( w* u7 J9 p( n: |7 b: m
# I A$ p3 K9 r3 ]3 ]0 @. Y$ n* W, d0 S5 N; H6 N1 F
1 d: k" {! S- n" y# b. a2 k N+ [/ ^, D* c) R7 T# H0 n) C! v6 |
2 q% z- W+ `/ Z# B8 ^! Y) O# K
: \' o+ N3 ^/ o
3 p7 m; P9 z/ A8 K7 W& c
& q! M& d) J# l* `4 x
6 L$ g& h$ e" ^' O7 H8 {0 m |
|
[复制链接]
