Ajax上傳文件時獲取上傳文件時的進度並顯示進度條

function uploadFile(){ $( ".file" ).change( function(){ var formData2 = $( this ).parent(); //獲得表單 $.ajax({ url: 'xxx&r=' + Math .random(), type: 'POST' , Accept: 'text/html;charset=UTF-8' , cache: fa

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