Ajax XMLHttpRequest
习惯了jQuery之后，怎么写XMLHttpRequest都快忘了，真够晕的....var xmlhttp;function getxmlhttp(){try{xmlhttp = new XMLHttpRequest();}catch(faild){try{xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");}catch(faild){try{xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");}catch(faild){xmlhttp=false;}}}}xmlhttp.onreadystatechange=updatePage();function updatePage() { if (request.readyState == 4) if (request.status == 200) alert("Server is done!");
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