request的属性和方法
request: [‘__class__‘, ‘__delattr__‘, ‘__dict__‘, ‘__dir__‘, ‘__doc__‘, ‘__enter__‘, ‘__eq__‘, ‘__exit__‘, ‘__format__‘, ‘__ge__‘, ‘__getattribute__‘, ‘__gt__‘, ‘__hash__‘,
‘__init__‘, ‘__init_subclass__‘, ‘__le__‘, ‘__lt__‘, ‘__module__‘, ‘__ne__‘, ‘__new__‘, ‘__reduce__‘, ‘__reduce_ex__‘, ‘__repr__‘, ‘__setattr__‘, ‘__sizeof__‘, ‘__str__‘,
‘__subclasshook__‘, ‘__weakref__‘, ‘_get_file_stream‘, ‘_get_stream_for_parsing‘, ‘_is_old_module‘, ‘_load_form_data‘, ‘_parse_content_type‘,
‘accept_charsets‘, ‘accept_encodings‘, ‘accept_languages‘, ‘accept_mimetypes‘, ‘access_route‘, ‘application‘,
‘args‘, ‘authorization‘, ‘base_url‘, ‘blueprint‘, ‘cache_control‘, ‘charset‘, ‘close‘, ‘content_encoding‘, ‘content_length‘, ‘content_md5‘, ‘content_type‘,
‘cookies‘, ‘data‘, ‘date‘, ‘dict_storage_class‘, ‘disable_data_descriptor‘, ‘encoding_errors‘, ‘endpoint‘, ‘environ‘,
‘files‘, ‘form‘, ‘form_data_parser_class‘, ‘from_values‘, ‘full_path‘, ‘get_data‘, ‘get_json‘, ‘headers‘, ‘host‘, ‘host_url‘, ‘if_match‘, ‘if_modified_since‘,
‘if_none_match‘, ‘if_range‘, ‘if_unmodified_since‘, ‘input_stream‘,
‘is_json‘, ‘is_multiprocess‘, ‘is_multithread‘, ‘is_run_once‘, ‘is_secure‘, ‘is_xhr‘, ‘json‘, ‘list_storage_class‘, ‘make_form_data_parser‘, ‘max_content_length‘,
‘max_form_memory_size‘, ‘max_forwards‘,
‘method‘, ‘mimetype‘, ‘mimetype_params‘, ‘module‘, ‘on_json_loading_failed‘, ‘parameter_storage_class‘, ‘path‘, ‘pragma‘, ‘query_string‘, ‘range‘, ‘referrer‘,
‘remote_addr‘, ‘remote_user‘,
‘routing_exception‘, ‘scheme‘, ‘script_root‘, ‘shallow‘, ‘stream‘, ‘trusted_hosts‘, ‘url‘, ‘url_charset‘, ‘url_root‘, ‘url_rule‘, ‘user_agent‘, ‘values‘,
‘view_args‘, ‘want_form_data_parsed‘]
request 接收数据的常用方式：
request.form ，前端表单提交或者post方法提交的非文件数据可以以这个方法获取，获取的结果使用
‘get‘, ‘getlist‘, ‘items‘, ‘keys‘,‘to_dict‘, ‘update‘, ‘values‘，‘fromkeys‘等合适方法去除要获取的值进行处理
[‘__class__‘, ‘__contains__‘, ‘__copy__‘, ‘__deepcopy__‘, ‘__delattr__‘, ‘__delitem__‘, ‘__dict__‘, ‘__dir__‘, ‘__doc__‘, ‘__eq__‘, ‘__format__‘, ‘__ge__‘,
‘__getattribute__‘, ‘__getitem__‘, ‘__getstate__‘, ‘__gt__‘, ‘__hash__‘, ‘__init__‘, ‘__init_subclass__‘, ‘__iter__‘, ‘__le__‘, ‘__len__‘, ‘__lt__‘, ‘__module__‘,
‘__ne__‘, ‘__new__‘, ‘__reduce__‘, ‘__reduce_ex__‘, ‘__repr__‘, ‘__setattr__‘, ‘__setitem__‘, ‘__setstate__‘, ‘__sizeof__‘, ‘__str__‘, ‘__subclasshook__‘, ‘__weakref__‘,
‘_hash_cache‘, ‘_iter_hashitems‘, ‘add‘, ‘clear‘, ‘copy‘, ‘deepcopy‘, ‘fromkeys‘, ‘get‘, ‘getlist‘, ‘items‘, ‘keys‘, ‘lists‘, ‘listvalues‘, ‘pop‘, ‘popitem‘, ‘popitemlist‘,
‘poplist‘, ‘setdefault‘, ‘setlist‘, ‘setlistdefault‘, ‘to_dict‘, ‘update‘, ‘values‘]
request.data
[‘__add__‘, ‘__class__‘, ‘__contains__‘, ‘__delattr__‘, ‘__dir__‘, ‘__doc__‘, ‘__eq__‘, ‘__format__‘, ‘__ge__‘, ‘__getattribute__‘, ‘__getitem__‘, ‘__getnewargs__‘,
‘__gt__‘, ‘__hash__‘, ‘__init__‘, ‘__init_subclass__‘, ‘__iter__‘, ‘__le__‘, ‘__len__‘, ‘__lt__‘, ‘__mod__‘, ‘__mul__‘, ‘__ne__‘, ‘__new__‘, ‘__reduce__‘, ‘__reduce_ex__‘,
‘__repr__‘, ‘__rmod__‘, ‘__rmul__‘, ‘__setattr__‘, ‘__sizeof__‘, ‘__str__‘, ‘__subclasshook__‘, ‘capitalize‘, ‘center‘, ‘count‘, ‘decode‘, ‘endswith‘, ‘expandtabs‘, ‘find‘,
‘fromhex‘, ‘hex‘, ‘index‘, ‘isalnum‘, ‘isalpha‘, ‘isdigit‘, ‘islower‘, ‘isspace‘, ‘istitle‘, ‘isupper‘, ‘join‘, ‘ljust‘, ‘lower‘, ‘lstrip‘, ‘maketrans‘, ‘partition‘,
‘replace‘, ‘rfind‘, ‘rindex‘, ‘rjust‘, ‘rpartition‘, ‘rsplit‘, ‘rstrip‘, ‘split‘, ‘splitlines‘, ‘startswith‘, ‘strip‘, ‘swapcase‘, ‘title‘, ‘translate‘, ‘upper‘, ‘zfill‘]
request.files，前端提交的文件，需要使用这个属性获取，暂时用的方法
‘get‘, ‘getlist‘, ‘items‘, ‘keys‘,
[‘__class__‘, ‘__contains__‘, ‘__copy__‘, ‘__deepcopy__‘, ‘__delattr__‘, ‘__delitem__‘, ‘__dict__‘, ‘__dir__‘, ‘__doc__‘, ‘__eq__‘, ‘__format__‘, ‘__ge__‘,
‘__getattribute__‘, ‘__getitem__‘, ‘__getstate__‘, ‘__gt__‘, ‘__hash__‘, ‘__init__‘, ‘__init_subclass__‘, ‘__iter__‘, ‘__le__‘, ‘__len__‘, ‘__lt__‘, ‘__module__‘,
‘__ne__‘, ‘__new__‘, ‘__reduce__‘, ‘__reduce_ex__‘, ‘__repr__‘, ‘__setattr__‘, ‘__setitem__‘, ‘__setstate__‘, ‘__sizeof__‘, ‘__str__‘, ‘__subclasshook__‘,
‘__weakref__‘, ‘_hash_cache‘, ‘_iter_hashitems‘, ‘add‘, ‘clear‘, ‘copy‘, ‘deepcopy‘, ‘fromkeys‘, ‘get‘, ‘getlist‘, ‘items‘, ‘keys‘, ‘lists‘, ‘listvalues‘, ‘pop‘,
‘popitem‘, ‘popitemlist‘, ‘poplist‘, ‘setdefault‘, ‘setlist‘, ‘setlistdefault‘, ‘to_dict‘, ‘update‘, ‘values‘]
request.args
[‘__class__‘, ‘__contains__‘, ‘__copy__‘, ‘__deepcopy__‘, ‘__delattr__‘, ‘__delitem__‘, ‘__dict__‘, ‘__dir__‘, ‘__doc__‘, ‘__eq__‘, ‘__format__‘, ‘__ge__‘,
‘__getattribute__‘, ‘__getitem__‘, ‘__getstate__‘, ‘__gt__‘, ‘__hash__‘, ‘__init__‘, ‘__init_subclass__‘, ‘__iter__‘, ‘__le__‘, ‘__len__‘, ‘__lt__‘, ‘__module__‘,
‘__ne__‘, ‘__new__‘, ‘__reduce__‘, ‘__reduce_ex__‘, ‘__repr__‘, ‘__setattr__‘, ‘__setitem__‘, ‘__setstate__‘, ‘__sizeof__‘, ‘__str__‘, ‘__subclasshook__‘, ‘__weakref__‘,
‘_hash_cache‘, ‘_iter_hashitems‘, ‘add‘, ‘clear‘, ‘copy‘, ‘deepcopy‘, ‘fromkeys‘, ‘get‘, ‘getlist‘, ‘items‘, ‘keys‘, ‘lists‘, ‘listvalues‘, ‘pop‘, ‘popitem‘, ‘popitemlist‘,
‘poplist‘, ‘setdefault‘, ‘setlist‘, ‘setlistdefault‘, ‘to_dict‘, ‘update‘, ‘values‘]
根据方法，尝试使用，不符合预期查看源码
