发布于 2016-09-29 23:26:04 | 130 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。
//初始化页面
function init() {
var ary = JSONToArray(XMLReader("node","content.dibi"));
var divtoc = document.getElementById("div_toc");
pageCount = ary.length;
for(k = 0; k < ary.length; k++){
obj = eval('(' + ary[k] + ')');
divtoc.innerHTML += "<a href='javascript:changeImage(" + obj.page.substring(obj.page.length-1) + ")'>"
+ obj.label + "</a> ";
}
page = 1;
changeImage(page);
var pageManager = document.getElementById("div_page");
pageManager.innerHTML = "<a href='javascript:changePage(0)'>上一页</a> "
+ "<a href='javascript:changePage(1)'>下一页</a><br/><br/>";
var ary2 = JSONToArray(XMLReader("meta","content.dibi"));
var divmeta = document.getElementById("div_meta");
var styStr = "<table>"
for(l = 0; l < ary2.length; l++){
obj2 = eval('(' + ary2[l] + ')');
styStr += "<tr><td>" + obj2.name + "</td><td>" + obj2.content + "</td></tr>";
}
divmeta.innerHTML = styStr + "</table>";
}
//解析.dibi 文件。
function XMLReader(key,fileName) {
var parse = BrowserValidator();
parse.load(fileName);
var json = "";
try{
var dom = parse.documentElement;
var attrLength = 0;
for (i = 0; i < dom.getElementsByTagName(key).length; i++) {
attrLength = dom.getElementsByTagName(key)[i].attributes.length;
objMsg = ",{";
for(j = 0; j < attrLength; j++){
objMsg += "'" + dom.getElementsByTagName(key)[i].attributes[j].name
+ "':'" + dom.getElementsByTagName(key)[i].attributes[j].value + "',";
}
objMsg = objMsg.substring(0,objMsg.length-1);
json += objMsg + "}";
}
json = json.substring(1);
}catch(e){}
return json;
}
//判断浏览器类型。支持 IE ，fireFox。
function BrowserValidator(){
var result;
if(!window.DOMParser && window.ActiveXObject) {
result = new ActiveXObject("Microsoft.XMLDOM");
result.async = false;
}
else if(document.implementation && document.implementation.createDocument) {
result = document.implementation.createDocument("", "", null);
result.async = false;
}
return result;
}
var page = 1; //当前页
var pageCount; //总页数
//根据点击改变页面图片
function changeImage(page1){
page = page1;
var divimg = document.getElementById("div_img");
divimg.innerHTML = "<img width='500' src = 'images/" + page +".jpg'/>";
}
//上页及下页
function changePage(flag){
if(flag == 0 && page > 1){
page--;
}
if(flag == 1 && page < pageCount){
page++;
}
changeImage(page);
}
//将 JSON 数据转换成数组
function JSONToArray(json){
return json.replace(new RegExp("},", "g"), "}|").split("|");
}
<html>
<head>
<title></title>
<script language="javascript" type="text/javascript" charset='gbk' src="xmlhelper.js"></script>
</head>
<body onload="init()">
<div id="div_toc"></div>
<div id="div_img"></div>
<div id="div_page"></div>
<div id="div_meta"></div>
</body>
</html>