在图片中找圆
............\Debug
............\.....\test.exe
............\.....\test.ilk
............\.....\test.pdb
............\ipch
............\....\test-a06b8bf3
............\....\.............\test-2434c52c.ipch
............\test
............\....\Debug
............\....\.....\CL.read.1.tlog
............\....\.....\CL.write.1.tlog
............\....\.....\link-cvtres.read.1.tlog
............\....\.....\link-cvtres.write.1.tlog
............\....\.....\link.11284-cvtres.read.1.tlog
............\....\.....\link.11284-cvtres.write.1.tlog
............\....\.....\link.11284.read.1.tlog
............\....\.....\link.11284.write.1.tlog
............\....\.....\link.7716-cvtres.read.1.tlog
............\....\.....\link.7716-cvtres.write.1.tlog
............\....\.....\link.7716.read.1.tlog
............\....\.....\link.7716.write.1.tlog
............\....\.....\link.7848-cvtres.read.1.tlog
............\....\.....\link.7848-cvtres.write.1.tlog
............\....\.....\link.7848.read.1.tlog
............\....\.....\link.7848.write.1.tlog
............\....\.....\link.8824-cvtres.read.1.tlog
............\....\.....\link.8824-cvtres.write.1.tlog
............\....\.....\link.8824.read.1.tlog
............\....\.....\link.8824.write.1.tlog
............\....\.....\link.read.1.tlog
............\....\.....\link.write.1.tlog
............\....\.....\mt.read.1.tlog
............\....\.....\mt.write.1.tlog
............\....\.....\rc.read.1.tlog
............\....\.....\rc.write.1.tlog
............\....\.....\test.Build.CppClean.log
............\....\.....\test.exe.embed.manifest
............\....\.....\test.exe.embed.manifest.res
............\....\.....\test.exe.intermediate.manifest
............\....\.....\test.lastbuildstate
............\....\.....\test.log
............\....\.....\test.obj
............\....\.....\test_manifest.rc
............\....\.....\vc100.idb
............\....\.....\vc100.pdb
............\....\circle.jpg
............\....\groundpic2.jpg
............\....\logo.png
............\....\many.jpg
............\....\test.cpp
............\....\test.jpg
............\....\test.vcxproj
............\....\test.vcxproj.filters
............\....\test.vcxproj.user
............\....\test2.jpg
............\....\test3.jpg
............\....\test4.jpg
............\....\test5.jpg
............\test.sdf
............\test.sln
............\test.suo