conn = MySQLdb.connect(host=ip, port=port, user=user, passwd=passwd, db=db, charset="utf8", connect_timeout=1)
cur = conn.cursor()
#将这3个 character_set_client, character_set_connection, and character_set_results 都设为 utf8mb4
cur.execute("set names utf8mb4")
网站名称：pythonmysqlutf8mb4
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http://bzwzjz.com/article/ijeegh.html
