Data sending method and device and data receiving method and device

The embodiment of the invention discloses a data sending method and device and a data receiving method and device, relates to the technical field of computers, and can improve the data sending efficiency. The method comprises the steps of adjusting currently sent data traffic based on an obtained data traffic adjustment request, and sending data to a data receiver or stopping sending data to the data receiver according to the adjusted data traffic. The embodiment of the invention is applied to a data sending scene. 本发明实施例公开一种数据发送方法、数据接收方法及装置，涉及计算机技术领域，能够提高数据发送效率。所述方法包括：基于获取的数据流量调整请求，对当前发送的数据流量进行调整，并按照调整后的数据流量，向所述数据接收方发送数据或者停止向所述数据接收方发送数据。本发明实施例应用于发送数据的场景。