|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句& y6 \0 M2 B1 Q, d# ~ v
if <condition> then' `5 h2 d i8 f# Y. w( v' V! G
<statement sequence1>;, _: R3 b( S8 l0 H) k0 I- x$ y7 t
elseif <condition> then
6 p/ T# F1 M" i* n, |9 w8 A <statement sequence2>;
0 p7 f* w1 S; T4 p, j& A# p8 A else 3 w* }7 q+ Q* T& w# R
<statement sequence3>;% m: d5 R) X0 `1 _3 h' Z+ x
end;
' W" @& P" y7 j7 N5 X# J如果分支比较多，用：
* K3 P) y, C* ^4 J x inspect <expression>
2 _$ k* M1 `* j when <constant_list> then
) a3 {- T: P( o) @; C. U <statement sequence1>;1 ^2 D9 W. t, h5 }
when <constant_list> then! m8 v' Y7 }" s2 h4 f$ b2 ^2 j
<statement sequence2>;
5 o; r# l- @# I, i ...
/ C1 r" j* Q' {' v else0 Y/ y# L0 O9 _( c) j8 g4 }
<statement sequence3>;0 Q0 V4 p7 h7 u
end;
; `) ~* i4 O( @! N p4 S1 W9 O5 v
+ [5 Y6 h ~1 J! w2循环语句( P: ^7 e2 l3 D9 C
(1) from <statement sequence1>( r5 W5 w9 C" l9 D2 j% x0 u
until <condition> loop- R" p3 [( L: d- `6 ?8 N
<statement sequence2>;: C+ T% j' t ~7 p7 E3 a
end;
6 x# }. w2 X, P z- R( K( M (2) while <condition> loop+ B( J8 I! o+ P8 z2 X$ S
<statement sequence1>;
. h; O5 k: Z/ K! L) o H; } end;2 z9 U! V+ @# d7 y: o: m M0 m
(3) repeat , T% m$ h6 }& F
<statement sequence1>;, L8 Y& v7 Z' H4 N5 j/ n
until <condition>;3 b. ^1 t5 \# t( Z$ E
(4) for <condition> to <condition> loop f: Q A3 G/ \. Q! ]8 u# b& V5 ^
<statement sequence1>;$ g1 M; I8 f3 N. h) H' U) D* R- _
next;4 e: G$ u/ ?6 d2 Y) {, i. u
3中断语句
. ^+ }9 @% [; M8 M waituntil <condition> prio <integer expression>;
+ s; h1 d# q, ]& d7 l1 i& q) h4 S: X H" _
1 f6 R1 T. b/ K5 V& i. A
以上为常用的函数！
4 b- }% K$ x- J j8 C还有很多，如有需要我把资料发到你邮箱里
2 A% A/ a2 C. B! K m+ s) c$ l/ N
W/ w9 X! i3 m" w5 f8 P# `7 x. D4 r% Q# D' E3 N7 P" X% k
8 F: V! L! y; U+ g4 K7 O) p9 J3 Y) i0 Y( k' N# g' N
! }" D1 \0 L% `2 L" R
! i: ^7 c: Z4 X; d( M# C, I; F$ \6 q* G5 m+ m, ?/ T
. F8 R4 d: O/ U8 m/ m. H% h q
6 b3 R8 J+ h- |5 s
|
|
[复制链接]
