This snippet works well if I try to write in a user directory but as soon as I try to write in Program Files, it just executes silently and the file has not been copied (no exception). If I try to copy the file in C:\ or in C:\Windows I catch an UnauthorizedAccessException.This snippet works well if I try to write in a
阅读背景：
无法使用FileIOPermission复制具有适当权限的文件
来源：互联网
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