要发送其他参数，您可以将其附加到formdata如下所示：

var formdata=new FormData();
formdata.append('simpleFile', $('#file').get('files')[0]); //use get('files')[0]
formdata.append('someotherparams',someothervalues);//you can append it to formdata with a proper parameter name

$.ajax({
    url : 'http://www.example.com',
    dataType : 'json',
    cache : false,
    contentType : false,
    processData : false,
    data : formData, //formdata will contain all the other details with a name given to parameters
    type : 'post',
    success : function(response) {something}
});