JS获得浏览器类型

来源：互联网发布：php ajax传递json 编辑：程序博客网时间：2024/05/22 01:53

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>ajax1</title> <script>function createXhr(){ //判定浏览器类型处理第一种方法 /*  var xhr; var str=window.navigator.userAgent; if(str.indexOf('MSIE')>0){xhr=new ActiveXObject('Microsoft.XMLHTTP'); }else{xhr=new XMLHttpRequest(); }return xhr; */ try{  return new ActiveXObject('Microsoft.XMLHTTP');  }catch(e){   }  try{  return new XMLHttpRequest();  }catch(e){  }   };window.onload=function(){document.getElementById('button1').onclick=function(){           var xhr=createXhr();           alert(xhr);}  };</script></head><body><input type="button" id="button1" value="确定"></input></body></html>

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