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3w....学习.教学 > ASP > response » expires

3w learning

response >
expires

Title:
response.expires = 0


	
	
	
		
		
		
		Description:
			
		
				
		
response.expires = 0


		

	
	Example Code:
			
	
<%
Response.Expires = 0 
Response.Expiresabsolute = Now() - 1 
Response.AddHeader "pragma","no-cache" 
Response.AddHeader "cache-control","private" 
Response.CacheControl = "no-cache" 
%> 



	
该属性指定在浏览器上缓冲存储页，距过期还有多少时间。
如用户在某个页过期前又回此页，会显示缓冲区中页面。
但若设置 response.expires=0，可使缓存页面立即过期。
是个实用属性，当客户通过 ASP 登陆页面进入 WEB 站后，
应该利用该属性使登陆页面立即过期，确保安全。


		
	Example Result:


	


	
												
								
					

					

						..
					

					

						...
					

					

						...
					

				

						
				
				

					

						
						
[ 7/20/2008 ]

						
						

					

								
				
					

						
						



						
					

						
					
www learning school add more scripts 
						and tips memo
					

				

						
			

		

				
	

	

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