发布于 2017-03-08 21:45:56 | 156 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言，主要目的是为了解决服务器端语言，比如Perl，遗留的速度问题，为客户提供更流畅的浏览效果。
本文实例讲述了JS使用cookie设置样式的方法。分享给大家供大家参考，具体如下：
var styleShow = ["blackgreen", "purple"];
var path = "/";
var StyleSwitch = {
//设置样式
setStyleSheet: function (StyleName) {
var i, a, main;
for (i = 0; (a = document.getElementsByTagName("link")[i]); i++) {
if (a.getAttribute("rel").indexOf("Style") != -1 && a.getAttribute("title")) {
a.disabled = true;
if (a.getAttribute("title") == StyleName) {
a.disabled = false;
this.setCookie("Style", StyleName);
}
}
}
},
//获取当前使用样式
getStyleSheet: function () {
var i, a;
for (i = 0; (a = document.getElementsByTagName("link")[i]); i++) {
if (a.getAttribute("rel").indexOf("Style") != -1 && a.getAttribute("title") && !a.disabled) {
return a.getAttribute("title");
}
}
return null;
},
//获取默认样式
getPreferredStyleSheet: function () {
var i, a;
for (i = 0; (a = document.getElementsByTagName("link")[i]); i++) {
if (a.getAttribute("rel").indexOf("Style") != -1
&& a.getAttribute("rel").indexOf("alt") == -1
&& a.getAttribute("title")
) {
return a.getAttribute("title");
}
}
return null;
},
//获取cookie
getCookie: function (name) {
var cookieName = encodeURIComponent(name) + "=",
cookieStart = document.cookie.indexOf(cookieName),
cookieValue = null;
if (cookieStart > -1) {
var cookieEnd = document.cookie.indexOf(";", cookieStart);
if (cookieStart == -1) {
alert(-2);
cookieEnd = document.cookie.length;
}
cookieValue = decodeURIComponent(document.cookie.substring(cookieStart + cookieName.length, cookieEnd));
}
for (var i = 0; i < styleShow.length; i++) {
if (cookieValue == styleShow[i]) {
alert(styleShow[i]);
return styleShow[i];
}
}
return styleShow[0];
},
//生成cookie
//name cookie名
//value 值
//expires 过期时间
//path 路径
setCookie: function (name, value, expires, path, domain, secure) {
var cookieText = encodeURIComponent(name) + "=" + encodeURIComponent(value) + ";";
if (expires instanceof Date) {
cookieText += "expires=" + expires.toGMTString();
}
if (path) {
cookieText += ";path=" + path;
}
if (domain) {
cookieText += ";domain=" + domain;
}
if (secure) {
cookieText += ";secure";
}
document.cookie = cookieText;
},
//重置cookie
unsetCookie: function (name, path, domain, secure) {
this.set(name, "", new Date(0), path, domain, screen);
}
};
希望本文所述对大家JavaScript程序设计有所帮助。