|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句, P& L1 O! `0 j4 h6 n: Y
if <condition> then
3 p! O. C+ b7 y* B& z6 i W1 R+ e U5 Q <statement sequence1>;: E. B! @, I, t1 U3 n5 y# }
elseif <condition> then0 b& y" |5 r' O5 \; D0 u- m- R
<statement sequence2>;) v h( Z7 {. T) |
else 7 T) Z7 `- s0 A" I+ C
<statement sequence3>;3 Y4 R* g7 v5 z" a8 Z" ?9 Y. }
end;) \2 ^% t7 ~0 s1 c# o9 j
如果分支比较多，用：- @! p' F1 }" _9 [
inspect <expression>5 U. K9 E8 K. }9 P% f7 b0 I+ E2 R
when <constant_list> then# x. E* X: q% E6 U" ]% n9 m
<statement sequence1>;
$ K# R1 k5 b$ x" ? when <constant_list> then* t9 _- Q% w6 \5 e; l% ]
<statement sequence2>;1 Z. m2 N; a: i, N
...+ s. y0 J l" R$ P4 G( L ~! X ^# t8 y
else
6 ]& @- t0 o: ]8 j8 M, z <statement sequence3>;& }* i/ o M% w9 z) D
end;
# c& u& m4 x% j; s# S$ Y o/ c( V5 Y F3 W" c7 y& P
2循环语句' ^5 W# @) c5 ^% x
(1) from <statement sequence1>+ y$ X* g, J H M4 ?
until <condition> loop, g0 g1 E3 ]& |, d7 B
<statement sequence2>;& F6 _) O- i8 z1 w9 a
end;
+ ~( r% t- A7 ^+ I+ @$ Y (2) while <condition> loop
7 U' O( q4 `3 Y* y. l <statement sequence1>;1 ]' d5 t1 w* e4 p% L8 L9 i! m
end;
: i& P$ Q2 d' Q8 j3 j, l (3) repeat
0 y# L$ W% j9 K7 \- Y8 a <statement sequence1>;7 C$ |+ j6 |4 u5 p/ ?9 ~- B- a
until <condition>;1 k+ s1 A2 _ S9 `; { S
(4) for <condition> to <condition> loop' J/ g7 ]; g1 A5 I7 [2 A& `
<statement sequence1>;& u3 N1 ]# `* p
next;( R2 A' `- v6 d+ ^- I8 D
3中断语句6 z4 X% U1 y3 c4 @ J( N
waituntil <condition> prio <integer expression>;" F$ p! y5 z/ s" t, Z" j# d
* P* b8 m* Y; u# `7 `( i
+ B- R1 Q3 J9 I f Q) d以上为常用的函数！
1 u4 E( b3 N7 S- Q还有很多，如有需要我把资料发到你邮箱里 7 F0 X* r, \% V% D# v8 J
3 `, N5 a5 f9 N' q7 t$ C! {
3 h' F1 P. j: g. w, A# ?3 A$ E. F& ~
1 F8 c" \ @( b
0 q5 X8 i7 W3 ]9 O% Y6 o) _4 K) D7 I
; v2 `. \, `! f" M
4 O0 o" B' F/ ^- B; G( |2 l1 f7 v3 r# Y$ x' f
7 Q, X# }5 U# N- r, ]/ k
|
|
[复制链接]
