How to Use FxCop in a command prompt

Assume that I want to run a. DLL assembly and enter it in the command prompt (fxcopcmd.exe has been added to the environment variable ):

Fxcopcmd/f: testnunit. dll/out: aa. xml

Always Prompt: Argument specified without a corresponding switch: 'testnunit. dll'

After instruction, it is found that/f under fxcopcmd is required because you need to find the Directory and change the above program to the following:

Fxcopcmd/f: d: \ testnunit. dll/out: d: \ aa. xml

If there is no/out, add/c before/f.

In short: whether or not you are in the root directory of the current Assembly, the directory under the/f parameter must be written.

Another problem occurs:

Fxcopcmd/f: d: \ test/o: test. the xml file I generated is always run under the root directory of the d Drive (unless I specify the directory/o: d: \ test. xml), why?