|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句 j6 n4 m) D! D/ S0 H. K
if <condition> then* j4 N3 _; R; W @
<statement sequence1>;
: _! @- W/ o: \& l" ^7 f elseif <condition> then m) O2 q, c7 E- a/ Z) h( S" g7 T5 ^
<statement sequence2>;
/ ]$ a$ g F- Q+ `, y$ G9 ^, ? else 7 _) _# G: ]# z3 Q' t4 @/ f, Y
<statement sequence3>;
0 w0 ?# a9 _1 g4 t end;7 Q( U+ k9 S E3 U0 _; e
如果分支比较多，用：) e" l8 a$ a9 g% Q4 V) Q2 z
inspect <expression>* N, K; J6 l$ }/ l6 P; F( _2 [
when <constant_list> then$ Z" @ F) `! D, D& Q$ d
<statement sequence1>;2 }9 d* D R$ c8 o: p: g: s, N
when <constant_list> then) U; o% U' Z; F3 s
<statement sequence2>;/ v5 m* u; g5 n0 t1 O
... `! p/ o* A! A( N2 C
else( F! H$ M; F: l' Y
<statement sequence3>;
; c0 y& M& B' A1 P8 xend;. \. L9 u6 [7 ^2 {& @; |
* G$ Y3 I: ?( e$ u+ h I
2循环语句
q& c# h5 H9 h# m m; a: C (1) from <statement sequence1>
% @6 h7 v+ d+ f- @ until <condition> loop
* D, W1 Z( t8 P2 t# e* v <statement sequence2>;
, k9 r6 j# f1 \7 Y! V end;+ W9 @, X' L1 q$ e5 L+ d( @, Z
(2) while <condition> loop
0 T) K4 I4 Z9 D8 K0 r& G <statement sequence1>;
0 c/ c) P6 A' f2 g2 _. G+ X5 D end;# H" b ^4 E* Q4 h$ C' `! L
(3) repeat 7 x* M1 S+ l* u" V; s9 f# Q
<statement sequence1>;
1 \- J: U3 a% e, f1 Y! c until <condition>;
6 M2 _+ S% _; \0 p1 k0 m (4) for <condition> to <condition> loop
* W+ ?* b0 z* | <statement sequence1>;
$ j9 C! P4 d0 F. O& f next;
# x! G2 i, E6 J3中断语句
, d6 u2 k6 F* x* h) ]4 m% r waituntil <condition> prio <integer expression>;
& v4 J5 e3 P6 | X; R+ H6 f9 C# N. j- M
5 B+ j3 F! s' W( ^& V以上为常用的函数！
' @. D0 R9 G% B9 P4 |# W! O: g& o' h+ Z还有很多，如有需要我把资料发到你邮箱里 7 O T* E$ l+ Y Q
& j! s4 I2 o5 J. u( d- r
* V5 w6 F& J# |7 l" H% I% R/ H+ S6 r- b6 I5 F
8 p0 C& i* W0 S/ M) j2 }# Z
2 \+ ]" x$ c5 a6 P
& Z& N6 ?7 P$ b m
8 A* x3 e& z3 |2 w
' x% U- c4 L" c! r, p' l
! P4 j, d- _- N6 {* F! k % A$ o! S. l7 y2 b0 R
|
|
[复制链接]
