$(".file").click(function () { $(".file").on("change",function(){ var objUrl = getObjectURL(this.files[0]) ; if (objUrl) { $(".pic").attr("src", objUrl).removeClass("hide"); } }); }); //存取file的url函数 function getObjectURL(file) { var url = null ; if (window.createObjectURL!=undefined) { url = window.createObjectURL(file) ; } else if (window.URL!=undefined) { url = window.URL.createObjectURL(file) ; } else if (window.webkitURL!=undefined) { url = window.webkitURL.createObjectURL(file) ; } return url ; }