|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句3 T4 E1 {8 u3 t! J0 K9 h3 T: [, D
if <condition> then
) f7 Q+ l9 p% ]4 U* \ `/ T. Q <statement sequence1>;+ m- k* f7 ~ p: o# O
elseif <condition> then
6 T/ y$ }! |6 d) y, e6 ? <statement sequence2>;
& s& J O3 J( [# D1 \" c* ^& P else , m/ g' p) {- [8 n1 K$ ^
<statement sequence3>;8 C. K9 x& j1 h0 {0 W# O2 T
end;
3 |7 f6 P2 g' e0 n如果分支比较多，用：
- A |; `, D3 T9 q0 [ inspect <expression>
- F7 Z+ q/ v# S" U when <constant_list> then
y/ P/ m" J: {, l u& i; k <statement sequence1>;% W( |+ {! I" D- [9 n' J
when <constant_list> then
4 {5 B! y& w- s <statement sequence2>;( |- W* F# L% h. q) D" I
...
5 v u3 l! w8 e3 K2 v+ x' v else# h7 ^' j" Q, \8 Y$ s; b" R
<statement sequence3>;
/ M, X4 P2 J2 I6 s" Y6 lend;
6 Z0 f+ k8 C* C/ N
m9 @- l4 o" q1 @2循环语句
3 R$ O6 ?7 O% \2 W5 z& R, x. C (1) from <statement sequence1>
- Z* Y2 W" q: r, l until <condition> loop6 n5 u6 U' \1 G- v
<statement sequence2>;
0 c u0 c6 x H3 G) J4 } end;
- T- B3 Y8 D `9 | (2) while <condition> loop
" @$ c, H! Z2 H+ M# B <statement sequence1>;5 D8 Y, i- o, b( i8 n2 i& c4 q: \
end;" t3 p% e& O9 q( H, ]6 J& P
(3) repeat
& H9 n+ H F t* G9 W! x3 i& c <statement sequence1>;
- ~6 x' p5 X4 Q- L3 K) Z2 | until <condition>;* t4 o% z0 z- ^/ t3 h8 _' a U
(4) for <condition> to <condition> loop
( O ?) @6 q) _4 P. N <statement sequence1>;2 E# C/ b1 ^& b
next;
, B5 b7 e# N v( x3中断语句7 Q1 P5 T: t' K2 T2 s/ H
waituntil <condition> prio <integer expression>;
- J0 y! ]: @, ]. g$ O- ~
( G {) ]9 c1 @+ Y& e8 S4 }% ]1 y+ \# e$ N! M
以上为常用的函数！' W; Q. a' D: y
还有很多，如有需要我把资料发到你邮箱里 & A! n7 h2 D" S b; X
" `# f* r" p& z$ ~) [; H, B9 a+ C6 |! x9 ?1 x
5 ^8 x- N' J/ g: b3 n
2 @. b9 q2 Y. s* s& T# X+ U2 P
* J( k, c. x/ u1 {, g. {) c& @: L5 u l
% y9 d! O0 j% H0 f- R( Q' z3 d7 N. Z/ N3 d
* G& v" U0 Z: T( N; x
) @+ Y. f% {1 ] |
|
[复制链接]
