js 读写 cookie

写  cookie_write.html 

<script language="JavaScript" type="text/javascript">  
        function addCookie(objName, objValue, objHours) {  
        //添加cookie  
            var str = objName + "=" + escape(objValue);  
            if (objHours > 0) {  
                //为0时不设定过期时间，浏览器关闭时cookie自动消失  
                var date = new Date();  
                var ms = objHours * 3600 * 1000;  
                date.setTime(date.getTime() + ms);  
                str += "; expires=" + date.toGMTString();  
            }  
            document.cookie = str;  
            alert("添加cookie成功");  
        }  
        addCookie("keyword","moto",1);  
    </script>

 




读 cookie_read.html
   

<script language="JavaScript" type="text/javascript">  
        function getCookie(objName) {//获取指定名称的cookie的值  
            var arrStr = document.cookie.split("; ");  
            for (var i = 0; i < arrStr.length; i ++) {  
                var temp = arrStr[i].split("=");  
                if (temp[0] == objName) return unescape(temp[1]);  
            }  
        }  
        var keyword_js = getCookie("keyword");  
        alert("keyword_js = " + keyword_js);  
    </script>