multiple child pointer 多子女指示符
physical child pointer [计] 物理子指示字 ; 物理子女指示符
Left child pointer 左孩子指针
logical child pointer 逻辑子女指针 ; 逻辑子代指针
Right-child pointer 右孩子指针
physical child last pointer 实体下代末指标
After the fork, the parent and child have copies of all open file descriptors and data values, so the pointer works for both.
执行fork之后，父进程和子进程获得打开的所有文件描述符和数据值的拷贝，所以指针对于它们都是有效的。
LpThreadAttributes is a pointer to the thread attributes that determines whether the thread handle can be inherited by the child process.
lpThreadAttributes是指向线程属性的指针，决定了线程句柄是否能由子进程继承。
Specifies if the record pointer remains on the same parent record until the record pointer of the child table moves through all related records.
指定是否只有在子表的记录指针遍历了所有相关记录之后，才移动父记录的记录指针。
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