泛函分析的好教材ThepresentmanuscriptwaswrittenformycourseFunctionalAnalysisgivenattheUniversityofViennainwinter2004and2009.ItisupdatedwheneverIndsomeerrors.Henceyoumightwanttomakesurethatyouhavethemostrecentversion,whichisavailablefromhttp://www.mat.univie.ac.