//Person categories, including reading and writing attributes : the ID number, name, sex, date of birth, home address, telephone and e-mail.// Read-only attribute a design age, date of birth it come under age. In the e-mail assignment, check the correct format, and if not correct, then dished out a set InvalidEmailFormatException abnormal (from ApplicationException inheritance).

Work2
.....\Work2

.....\.....\AssemblyInfo.cs
.....\.....\bin
.....\.....\...\Debug
.....\.....\Form1.cs
.....\.....\Form1.resx
.....\.....\obj
.....\.....\...\Debug
.....\.....\Work2.csproj
.....\.....\Work2.csproj.user
.....\Work2.sln

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