ajax提交可以上传文件的form表单
var formData = new FormData($( "#fm")[0]);
$.ajax({
url: 'webnavigationcw/webnavigationcw_insert' ,
type: 'POST',
data: formData,
async: false,
cache: false,
contentType: false,
processData: false,
success: function (returndata) {
alert(returndata);
},
error: function (returndata) {
alert(returndata);
}
});

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