类的聚合，矩形类
................\9.12 RE
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................\.......\.....\............\link.read.1.tlog
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................\.......\ReadMe.txt
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................\.......\stdafx.h
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................\9.12 RE.sdf
................\9.12 RE.sln
................\9.12 RE.v12.suo
................\Debug
................\.....\9.12 RE.exe
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................\ipch
................\....\9.12 re-946721a9
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................\....\9.12 re-a9f4f44d
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