|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句, D9 _5 f5 B6 J, a3 B
if <condition> then/ H3 \$ Q. j: _' [( d/ C# S( t8 o
<statement sequence1>;
. t9 R u* i% D1 o elseif <condition> then( m" l: Z( `2 y" c, X, N
<statement sequence2>;
0 m2 w0 T- s9 p0 j }, n else y" \3 i \+ [6 X. j
<statement sequence3>;' E2 N( I/ v1 R; Q3 b4 e: H
end;) |# r1 W- e1 R) v
如果分支比较多，用：
, o/ n [" R9 w/ G& B inspect <expression>9 c i3 _9 O. Y$ u& H! p3 `0 X
when <constant_list> then
3 L* e; v2 w0 d; ~3 }5 g( j <statement sequence1>;
' ^5 g, \9 B* ?8 S, M when <constant_list> then
8 T: m* R# N4 Q- Q <statement sequence2>;( x. k/ C# R! K, d) Q! q( W! E
...5 Z( _, c R4 X9 ~
else
( H5 C, q8 \* N; y+ z6 Y! r1 A <statement sequence3>;
8 F$ a' U# K* \+ s- h uend;
6 i' Y# P: [, t) A+ ]
4 {/ J' ]7 y) }2 a! l2循环语句8 w+ F; W* v# W8 o1 q
(1) from <statement sequence1>
9 J0 o" E' Z$ D! I" @' y+ ~6 s until <condition> loop/ P3 B1 M" Z, G9 N) _7 Q# ~
<statement sequence2>;
( U( Y' V7 N4 B, Z9 d3 ? end;! {4 Y0 J# E- K- I" W1 x
(2) while <condition> loop
) Z- v, f3 ^% Q* f# G) f3 X( K" I <statement sequence1>;5 [* J. N# c v9 G
end;6 K- b9 T; ?# q
(3) repeat
* j$ Z6 G: q* v: ]+ f <statement sequence1>;
8 `$ M4 ?: T* h! o until <condition>;
( G' s3 I, p2 { (4) for <condition> to <condition> loop
8 C) ^. e( z3 s& @- d <statement sequence1>;
* W) P/ L- }7 K8 |+ ~ next;2 y( A$ L' L9 l" P: R
3中断语句
$ T1 N2 ?, c0 r! r waituntil <condition> prio <integer expression>;$ j* l& E6 a8 J' w5 k
5 C T1 s: l& c
5 j2 k0 { Q4 @& ?; S以上为常用的函数！
4 V4 v' W$ F7 C8 b @还有很多，如有需要我把资料发到你邮箱里
1 @2 A: ^+ N5 u+ u) u: s: p/ d. @2 C. N: l
# \" [4 \6 f% u( i7 a3 O
, q; v7 m* U% L' U2 C0 W
0 r7 K, Q$ B5 o! q" Q
6 x* l' X. s p! D* j% ^, p7 A
8 A( n& {& [, T( [/ m
; n6 N3 h: k/ W# Z; Y+ ~( M( W" ?8 a I2 C& D: S. V
& C$ W1 i9 r' w. V0 [
% T; \: Q" k: f q9 H9 m |
|
[复制链接]
