try:
    response = sms_client.send_message(signature_id='sms-sign-WWejWQ54455', template_id='sms-tmpl-wHoJXL09355', 
                                       mobile='13800138000', content_var_dict={'content': "测试发送短信"})
except ex.BceHttpClientError as e:
    if isinstance(e.last_error, ex.BceServerError):
        LOG.error('send request failed. Response %s, code: %s, request_id: %s'
                  % (e.last_error.status_code, e.last_error.code, e.last_error.request_id))
    else:
        LOG.error('send request failed. Unknown exception: %s' % e)