在瀏覽器中預覽url為：http://localhost:8080/ajaxtest/XMLHttpRequest.html?_ijt=nrl495ituvju0g9co4dj50s215，后面的?_ijt=nrl495ituvju0g9co4dj50s215是什么東西
在瀏覽器中預覽url為：http://localhost:8080/ajaxtest/XMLHttpRequest.html?_ijt=nrl495ituvju0g9co4dj50s215，后面的?_ijt=nrl495ituvju0g9co4dj50s215是什么東西，有什么辦法去掉嗎
