an><div class="copy-popup-wrapper popup-to-left"><span class="copy-popup-icon"></span><span>Content copied to clipboard</span></div></span></div><p class="paragraph">可观察的数据来源<a href="https://developer.android.com/reference/kotlin/androidx/lifecycle/MutableLiveData.html">MutableLiveData</a> 其修饰的属性字段的读写都会自动映射到本地磁盘 和<a href="serial.html">serial</a>不同的是通过内存/磁盘双通道读写来优化读写性能 其修饰的属性字段第一次�