元组类型数据转换为列表
a = (('5699461012b1cdb956f3bdf5df8cc472',), ('fcc2a2eec59209b14c1eb5a7435800dc',), ('6b43c9fe2dc3bd73bd051055a9e6dda0',), ('584d084095794d7c8ff3091305f67b6e',), ('4715e67cfbe736c85fa74f140f9e7a89',), ('8d0a6f074ad4578445e3f22303af67ef',))b =