The object identifier must have at least two Numbers separated by a period.
对象标识必须有至少两个数字，由句点分隔。
The inode represents an object in the file system with a unique identifier.
inode表示文件系统中的一个对象，它具有惟一标识符。
Retrieves the process identifier for each process object in the system.
返回在系统中每个进程的进程标识符。
Retrieves the process identifier for each process object in the system.
返回在系统中每个进程的进程标识符。
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