var fileName = $('#fileName').val();
        var id = $('#id').val();
        if(isNull(fileName)&&isNull(id)){
            layer.msg("id和檔名必傳！");
            return;
        }


 function isNull( str ){
        if ( str == "" ) return true;
        var regu = "^[ ]+$";
        var re = new RegExp(regu);
        return re.test(str);
 }
 

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