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Access是一种桌面数据库,只适合数据量少的应用,在处理少量数据和单机访问的数据库时是很好的,效率也很高。但是它的同时访问客户端不能多于4个。access数据库有一定的极限,如果数据达到100M左右,很容易造成服务器iis假死,或者消耗掉服务器的内存导致服务器崩溃。程序|考证码<%
Response.Buffer=True
WithResponse
.Expires=-1
.AddHeader"Pragma","no-cache"
.AddHeader"cache-ctrol","no-cache"
EndWith
Dima(10,10)
a(0,1)="0x3c"数字0
a(0,2)="0x66"
a(0,3)="0xc3"
a(0,4)="0xc3"
a(0,5)="0xc3"
a(0,6)="0xc3"
a(0,7)="0xc3"
a(0,8)="0xc3"
a(0,9)="0x66"
a(0,10)="0x3c"
a(1,1)="0x18"数字1
a(1,2)="0x1c"
a(1,3)="0x18"
a(1,4)="0x18"
a(1,5)="0x18"
a(1,6)="0x18"
a(1,7)="0x18"
a(1,8)="0x18"
a(1,9)="0x18"
a(0,10)="0x7e"
a(2,1)="0x3c"数字2
a(2,2)="0x66"
a(2,3)="0x60"
a(2,4)="0x60"
a(2,5)="0x30"
a(2,6)="0x18"
a(2,7)="0x0c"
a(2,8)="0x06"
a(2,9)="0x06"
a(2,10)="0x7e"
a(3,1)="0x3c"数字3
a(3,2)="0x66"
a(3,3)="0xc0"
a(3,4)="0x60"
a(3,5)="0x1c"
a(3,6)="0x60"
a(3,7)="0xc0"
a(3,8)="0xc0"
a(3,9)="0x66"
a(3,10)="0x38"
a(4,1)="0x38"数字4
a(4,2)="0x3c"
a(4,3)="0x36"
a(4,4)="0x33"
a(4,5)="0x33"
a(4,6)="0x33"
a(4,7)="0xff"
a(4,8)="0x30"
a(4,9)="0x30"
a(4,10)="0xfe"
a(5,1)="0xfe"数字5
a(5,2)="0xfe"
a(5,3)="0x06"
a(5,4)="0x06"
a(5,5)="0x3e"
a(5,6)="0x60"
a(5,7)="0xc0"
a(5,8)="0xc3"
a(5,9)="0x66"
a(5,10)="0x3c"
a(6,1)="0x60"数字6
a(6,2)="0x30"
a(6,3)="0x18"
a(6,4)="0x0c"
a(6,5)="0x3e"
a(6,6)="0x63"
a(6,7)="0xc3"
a(6,8)="0xc3"
a(6,9)="0x66"
a(6,10)="0x3c"
a(7,1)="0xff"数字7
a(7,2)="0xc0"
a(7,3)="0x60"
a(7,4)="0x30"
a(7,5)="0x18"
a(7,6)="0x18"
a(7,7)="0x18"
a(7,8)="0x18"
a(7,9)="0x18"
a(7,10)="0x18"
a(8,1)="0x3c"数字8
a(8,2)="0x66"
a(8,3)="0xc3"
a(8,4)="0x66"
a(8,5)="0x3c"
a(8,6)="0x66"
a(8,7)="0xc3"
a(8,8)="0xc3"
a(8,9)="0x66"
a(8,10)="0x3c"
a(9,1)="0x3c"数字9
a(9,2)="0x66"
a(9,3)="0xc3"
a(9,4)="0xc3"
a(9,5)="0x66"
a(9,6)="0x3c"
a(9,7)="0x18"
a(9,8)="0x0c"
a(9,9)="0x06"
a(9,10)="0x03"
Dimnum
Randomize
num=Int(7999*Rnd+2000)
Session("safenum")=num
DimImage
DimWidth,Height
Dimdigtal
DimLength
Dimsort
Dimhc
Length=4
hc=chr(13)&chr(10)
Redimsort(Length)
digital=""
ForI=1ToLength-Len(num)
digital=digital&"0"
Next
ForI=1ToLen(num)
digital=digital&Mid(num,I,1)
Next
ForI=1ToLen(digital)
sort(I)=Mid(digital,I,1)
Next
Width=8*Len(digital)
Height=10
Response.ContentType="image/x-xbitmap"
Image="#definecounter_width"&Width&hc
Image=Image&"#definecounter_height"&Height&hc
Image=Image&"staticunsignedcharcounter_bits[]={"&hc
ForI=1ToHeight
ForJ=1ToLength
Image=Image&a(sort(J),I)&","
Next
Next
Image=Left(Image,Len(Image)-1)
Image=Image&"};"&hc
Response.WriteImage
%>
</p>我想详细了解ASP整站代码与PSP整站代码有什么优缺点,那个更好,更安全,更用容易维护,和管理。。。 |
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