~~~ C.ajax = function (args) { var self = this; this.options = { type: 'GET', async: true, contentType: 'application/x-www-form-urlencoded', url: 'about:blank', data: null, success: {}, error: {} }; this.getXmlHttp = function () { var xmlHttp; try { xmlhttp = new XMLHttpRequest(); }catch (e) { try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }catch (e) { xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); } }if (!xmlhttp) { alert('您的浏览器不支持AJAX'); return false; } return xmlhttp; }; this.send = function () { C.each(self.options, function (key, val) { self.options[key] = (args[key] == null) ? val : args[key]; }); var xmlHttp = new self.getXmlHttp(); if (self.options.type.toUpperCase() == 'GET') { xmlHttp.open(self.options.type, self.options.url + (self.options.data == null ? "" : ((/[?]$/.test(self.options.url) ? '&' : '?') + self.options.data)), self.options.async); }else { xmlHttp.open(self.options.type, self.options.url, self.options.async); xmlHttp.setRequestHeader('Content-Length', self.options.data.length); } xmlHttp.setRequestHeader('Content-Type', self.options.contentType); xmlHttp.onreadystatechange = function () { if (xmlHttp.readyState == 4) { if (xmlHttp.status == 200 || xmlHttp.status == 0) { if (typeof self.options.success == 'function') self.options.success(xmlHttp.responseText); xmlHttp = null; }else { if (typeof self.options.error == 'function') self.options.error('Server Status: ' + xmlHttp.status); } } }; xmlHttp.send(self.options.type.toUpperCase() == 'POST' ? self.options.data.toString() : null); }; this.send(); }; ~~~