How to test the object address already exists

如何测试目标网址是否已经存在\Example\app.ico
............................\.......\app.rc
............................\.......\AssemblyInfo.cpp
............................\.......\Example.cpp
............................\.......\Example.vcproj
............................\.......\Example.vcproj.LUOBIN.luo01.user
............................\.......\Form1.h
............................\.......\Form1.resx
............................\.......\ReadMe.txt
............................\.......\..lease\app.res
............................\.......\.......\AssemblyInfo.obj
............................\.......\.......\BuildLog.htm
............................\.......\.......\Example.exe.intermediate.manifest
............................\.......\.......\Example.Form1.resources
............................\.......\.......\Example.obj
............................\.......\.......\mt.dep
............................\.......\.......\stdafx.obj
............................\.......\.......\vc80.pdb
............................\.......\resource.h
............................\.......\stdafx.cpp
............................\.......\stdafx.h
............................\Example.sln
............................\Example.suo
............................\release\Example.exe
............................\.......\Example.pdb
............................\Example\Release
............................\Example
............................\release
如何测试目标网址是否已经存在

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