new (C# Reference)

https://msdn.microsoft.com/en-us/library/51y09td4.aspx

In C#, the new keyword can be used as an operator, a modifier, or a constraint.

new Operator

Used to create objects and invoke constructors.

new Modifier

Used to hide an inherited member from a base class member.

new Constraint

Used to restrict types that might be used as arguments for a type parameter in a generic declaration.

new (C# Reference)

原文：http://www.cnblogs.com/chucklu/p/5278094.html