import os.path import sqlite3 DB = None cursor = None misc_path = "./app/Database/Msg/Misc.db" # misc_path = './Msg/Misc.db' if os.path.exists(misc_path): DB = sqlite3.connect(misc_path, check_same_thread=False) # '''创建游标''' cursor = DB.cursor() def get_avatar_buffer(userName): sql = ''' select smallHeadBuf from ContactHeadImg1 where usrName=?; ''' cursor.execute(sql, [userName]) result = cursor.fetchall() # print(result[0][0]) if result: return result[0][0] return None if __name__ == '__main__': get_avatar_buffer('wxid_al2oan01b6fn11')