苹果为了保持自家一定领先地位，在 MAC 设备上都采用了 SSD 磁盘。为了帮助用户关注磁盘运行状况，macOS 系统中已经内置了检查内置 SSD 和其它已连接磁盘运行状态的相关工具。以便在 SSD 固态磁盘挂掉之前，就让用户
If one could put an array of pointers to child structs inside unsafe structs in C# like one could in C, constructing complex data structures without the overhead of having one object per node would be
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