记住宿主的VBA代码被编译为p代码，而不是本机代码，这会导致性能略微有所下降，尽管在进程内运行能够优化对Office对象的方法调用。
Keep in mind that hosted VBA code is compiled to p-code, not native code, and this incurs a slight performance penalty, although running in process enables optimized method calls to Office objects.
sem_perm . cuid和sem_perm . uid被设置为调用进程的有效用户id。
Sem_perm.cuid and sem_perm.uid are set to the effective user id of the calling process.
sem_perm . cgid和sem_perm . gid被设置为调用进程的有效组id。
Sem_perm.cgid and sem_perm.gid are set to the effective group id of the calling process.
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