1,HTML source code£º <html> <head> <title>How to use Cookie</title> </head> <body> <script src="jsjava.js"></script> <script> var request=new HttpRequest(location.href); var response=new HttpResponse(); var cookie=new Cookie("username","wanglei"); response.addCookie(cookie); var cvalue=request.getCookie("username"); document.write(cvalue+"<br>"); request.removeCookie("username","",""); cvalue=request.getCookie("username"); document.write(cvalue+"<br>"); </script> </body> </html> 2,The display:

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