我正在嘗試使用 python 連接在 Windows 中運行的虛擬 CentOS 機器之一。我已經安裝了 paramiko 模塊來做到這一點。但低于錯誤C:\Users\xxxx\PycharmProjects\xxxx\venv\lib\site-packages\paramiko\kex_ecdh_nist.py:39: CryptographyDeprecationWarning: encode_point has been deprecated on EllipticCurvePublicNumbers and will be removed in a future version. Please use EllipticCurvePublicKey.public_bytes to obtain both compressed and uncompressed point encoding.  m.add_string(self.Q_C.public_numbers().encode_point())C:\Users\xxx\PycharmProjects\xxxx\venv\lib\site-packages\paramiko\kex_ecdh_nist.py:96: CryptographyDeprecationWarning: Support for unsafe construction of public numbers from encoded data will be removed in a future version. Please use EllipticCurvePublicKey.from_encoded_point  self.curve, Q_S_bytesC:\Users\xxxx\PycharmProjects\xxxx\venv\lib\site-packages\paramiko\kex_ecdh_nist.py:111: CryptographyDeprecationWarning: encode_point has been deprecated on EllipticCurvePublicNumbers and will be removed in a future version. Please use EllipticCurvePublicKey.public_bytes to obtain both compressed and uncompressed point encoding.  hm.add_string(self.Q_C.public_numbers().encode_point())下面是我的代碼：import paramikossh = paramiko.client.SSHClient()ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())try:    ssh.connect('10.xx.xx.xxx', username='root', password='xxxxx')except paramiko.SSHException:    print("Connection Failed")    quit()stdin, stdout, stderr = ssh.exec_command("ls /etc/")for line in stdout.readlines():    print    line.strip()ssh.close()我使用PyCharm 2018.3 社區版搜索并安裝了密碼學 2.6.1，python 版本 3.7.1。請讓我知道我在這里做錯了什么