�读取磁盘数据, 然后拷贝到内存中, 后续都是直接读取内存中的拷贝 写入会优先写入到内存中的拷贝份, 然后通过子线程异步写入到磁盘 线程安全</p><h2 class="">Parameters</h2><div data-togglable="Parameters"><div class="table" data-togglable="Parameters"><div class="table-row" data-filterable-current=":serialize:dokkaHtml/release" data-filterable-set=":serialize:dokkaHtml/release"><div class="main-subrow keyValue WithExtraAttributes"><div class=""><span class