C#: What is the difference between struct and class?

1// Struct — value type
2struct Point {
3    public int X, Y;
4}
5
6Point p1 = new Point { X = 1, Y = 2 };
7Point p2 = p1;  // Copy
8p2.X = 10;      // p1.X unchanged
9
10// Class — reference type
11class Person {
12    public string Name;
13}
14
15Person p1 = new Person { Name = "Alice" };
16Person p2 = p1;  // Copy reference
17p2.Name = "Bob"; // p1.Name also changed