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fix: 修复语句错误 #342

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fix: 修复语句错误 #342

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2 changes: 1 addition & 1 deletion network/1_base/tcp_ip_model.md
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Expand Up @@ -47,7 +47,7 @@ UDP 相对来说就很简单，简单到只负责发送数据包，不保证数

传输层可能大家刚接触的时候，会认为它负责将数据从一个设备传输到另一个设备，事实上它并不负责。

实际场景中的网络环节是错综复杂的，中间有各种各样的线路和分叉路口，如果一个设备的数据要传输给另一个设备，就需要在各种各样的路径和节点进行选择，而传输层的设计理念是简单、高效、专注，如果传输层还负责这一块功能就有点违背设计原则了。
实际场景中的网络环境是错综复杂的，中间有各种各样的线路和分叉路口，如果一个设备的数据要传输给另一个设备，就需要在各种各样的路径和节点进行选择，而传输层的设计理念是简单、高效、专注，如果传输层还负责这一块功能就有点违背设计原则了。

也就是说，我们不希望传输层协议处理太多的事情，只需要服务好应用即可，让其作为应用间数据传输的媒介，帮助实现应用到应用的通信，而实际的传输功能就交给下一层，也就是**网络层**（*Internet Layer*）。

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