|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
: x6 h8 t5 ?& T5 w& T1 } if <condition> then3 q/ `& q% q/ W6 G2 I. C# m. z" G
<statement sequence1>;) y* B0 c! f: \- f. K+ j
elseif <condition> then/ _6 n, k4 l2 `* m; r
<statement sequence2>;8 F( z0 G2 X p" G6 U; t6 X( ?
else
9 l, e% |& H* `7 m* ?: ]$ y0 U: A <statement sequence3>;
7 k+ X. i* `+ ~# N8 ]6 D( J! { end;7 B4 h+ Z9 t, m+ q
如果分支比较多，用：
! h6 U3 z7 e1 K5 S inspect <expression>3 s# P" w1 Q) z8 T9 G% E
when <constant_list> then4 ^5 L9 O$ L% h' F: x. O
<statement sequence1>;" ]# y4 W5 c' r
when <constant_list> then
0 N" B# k) f1 A, I <statement sequence2>;9 k I$ X3 R! k8 D' W
...
6 f1 g# y- p4 s( [8 v else, R: v U# v& Y& N
<statement sequence3>;9 o. o( f8 x5 |' x
end;
) ` P& L6 C* _, S9 @- A& C+ @4 I0 u. c6 T3 r
2循环语句: G* p4 Z5 G9 S% g/ X D
(1) from <statement sequence1>
5 S9 K+ d, g4 S4 N+ r/ O until <condition> loop
0 {) B! } W) u! _( u <statement sequence2>;
" B& j0 r/ X v- c4 f+ ?3 T end;* l1 f* t0 F" h: A& b3 E" G
(2) while <condition> loop1 D! i, q4 H* ~
<statement sequence1>;3 S0 i p/ i3 s \
end;
- c) [& y0 w+ X# ? (3) repeat
2 [1 ]' Y) \" L( [ <statement sequence1>;8 M4 T6 s9 _2 a v i9 V6 D( T
until <condition>;6 L' T* Z- d! H2 f: M: ]0 u! y
(4) for <condition> to <condition> loop$ Y3 K/ j$ K* i- A/ v
<statement sequence1>;# y2 J$ N6 W( S4 R2 h" l
next;0 w2 _( x- g# ]6 D$ h: n# R
3中断语句" `- s9 V, c! D7 g8 w
waituntil <condition> prio <integer expression>;
1 U! k) [8 L' @8 H$ i* V9 F" U8 k
! S' P8 ]9 j- i" A! {
) c6 I7 r2 ?% X- c$ O7 S! L以上为常用的函数！
# r1 F1 @) I8 ~: v% ~6 d- H还有很多，如有需要我把资料发到你邮箱里 # A- x; Y2 w) D/ V
6 I+ e6 }4 ~. Q, @; o
; W; M H/ y4 \
" ?: Z2 z \' W/ }$ X- Y- y / U, C# b+ @8 D) N) B4 k, B
0 ]% p5 \2 |+ D+ H
% K8 O+ o8 A7 e- E' j0 Q5 y" M6 {9 `7 H. D# j: C
% j! J' H7 l9 q2 Q
, A7 f0 u0 \* Q: j' @* S% p7 i
" d2 J% p5 G% I4 d: X5 E
|
|
[复制链接]
