【鑫森】python利用pymysql判断mysql数据库是否连接成功

	host = "127.0.0.1"
    user = "root"
    password = ""
    db = "ceshi"
    try:
        conn = pymysql.connect(host=host, user=user, password=password, database=db, port=3306)
        conn.close()
        return '成功'
    except Exception as err:
        print(err)
        return '失败'