在编写多个html文件时，常常会有重复代码块出现，然而HTML并不能像PHP等动态页面那样直接引用其他页面。

接下来分享个js,引用此js后HTML即可快速引用其他页面

引用：include.js

http://file.eyunzhu.com/js/include.js

例子：

include.js代码

(function(window, document, undefined) {

var IncludeFile = function() {}

IncludeFile.prototype = {

//倒序循环

forEach: function(array, callback) {

var size = array.length;

for(var i = size - 1; i >= 0; i--){

callback.apply(array[i], [i]);

}

},

getFilePath: function() {

var curWwwPath=window.document.location.href;

var pathName=window.document.location.pathname;

var localhostPaht=curWwwPath.substring(0,curWwwPath.indexOf(pathName));

var projectName=pathName.substring(0,pathName.substr(1).lastIndexOf('/')+1);

return localhostPaht+projectName;

},

//获取文件内容

getFileContent: function(url) {

var ie = navigator.userAgent.indexOf('MSIE') > 0;

var o = ie ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest();

o.open('get', url, false);

o.send(null);

return o.responseText;

},

parseNode: function(content) {

var objE = document.createElement("div");

objE.innerHTML = content;

return objE.childNodes;

},

executeScript: function(content) {

var mac = /

var r = "";

while(r = mac.exec(content)) {

eval(r[1]);

}

},

getHtml: function(content) {

var mac = /

content.replace(mac, "");

return content;

},

getPrevCount: function(src) {

var mac = /\.\.\//g;

var count = 0;

while(mac.exec(src)) {

count++;

}

return count;

},

getRequestUrl: function(filePath, src) {

if(/http:\/\//g.test(src)){ return src; }

var prevCount = this.getPrevCount(src);

while(prevCount--) {

filePath = filePath.substring(0,filePath.substr(1).lastIndexOf('/')+1);

}

return filePath + "/"+src.replace(/\.\.\//g, "");

},

replaceIncludeElements: function() {

var $this = this;

var filePath = $this.getFilePath();

var includeTals = document.getElementsByTagName("include");

this.forEach(includeTals, function() {

//拿到路径

var src = this.getAttribute("src");

//拿到文件内容

var content = $this.getFileContent($this.getRequestUrl(filePath, src));

//将文本转换成节点

var parent = this.parentNode;

var includeNodes = $this.parseNode($this.getHtml(content));

var size = includeNodes.length;

for(var i = 0; i < size; i++) {

parent.insertBefore(includeNodes[0], this);

}

//执行文本中的额javascript

$this.executeScript(content);

parent.removeChild(this);

//替换元素 this.parentNode.replaceChild(includeNodes[1], this);

})

}

}

window.onload = function() {

new IncludeFile().replaceIncludeElements();

}

})(window, document)