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  • Cookie

    1. 网页上所有元素都有一个style对象,借此可以获得网页上任何事物的高度和宽度。document.getElementById("rockImg").style.height
    2. 浏览器大小改变触发onresize事件。
    3.   alert(typeof document.cookie);  //string
      //写Cookie
            function writeCookie(name, value, days) {
                var expires = "";
                if (days) {
                    var date = new Date();
                    date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
                    expires = ";expires=" + date.toGMTString();
                }
                document.cookie = name + "=" + value + expires + ";path=/";
            }
            //读取Cookie
            function readCookie(name) {
                var searchName = name + "=";
                var cookies = document.cookie.split(';');
                for (var i = 0; i < cookies.length; i++) {
                    var c = cookies[i];
                    while (c.charAt(0) == ' ') {
                        c = c.substring(1, c.length);
                    }
                    if (c.indexOf(searchName) == 0) {
                        return c.substring(searchName.length, c.length);
                    }
                }
                return null;
            }
            //清除Cookie
            function eraseCookie(name) {
                writeCookie(name, "", -1);
            }
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  • 原文地址:https://www.cnblogs.com/hometown/p/3236008.html
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