三种方式获取XMLHttpRequest对象
获取XmlHttpRequest对象
代码如下:
//1 function getXMLHttpRequest() { var xmlHttpReq; try { // Firefox, Opera 8.0+, Safari xmlHttpReq = new XMLHttpRequest(); } catch (e) { try {// Internet Explorer xmlHttpReq = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { } } } return xmlHttpReq; } //2 function getXMLHttpRequest() { var xmlHttpReq = null; if (window.ActiveXObject) {// Internet Explorer xmlHttpReq = new ActiveXObject("MSXML2.XMLHTTP.3.0"); } else if (window.XMLHttpRequest) { xmlHttpReq = new XMLHttpRequest(); } return xmlHttpReq; } //3 function getXMLHttpRequest() { var xmlHttpReq = null; if (window.XMLHttpRequest) {// Mozilla Firefox, Opera 8.0+, Safari xmlHttpReq = new XMLHttpRequest(); } else { if (window.ActiveXObject) {// Internet Explorer try { xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { try {// Internet Explorer xmlHttpReq = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { } } } } return xmlHttpReq; }
相关推荐
jiaguoquan00 2020-07-07
zhaolisha 2020-06-12
坚持着执着 2020-06-05
knightwatch 2020-04-25
zhaolisha 2020-01-11
zhaolisha 2019-12-29
wanghongsha 2019-12-06
小小大人物 2014-01-19
loopstang 2014-01-11
roodyszz0 2019-11-17
81493369 2019-11-04
Liuzhiqianblog 2019-11-03
用不完的好奇心 2019-10-26
89241846 2019-09-12
青菜萝卜白菜 2019-07-03
荒唌Blog 2017-12-18
无材可去补苍天 2019-06-12
HAcSeeking 2018-11-05