public static StudentPrototype CreateInstance()
{
StudentPrototype studentPrototypes = (StudentPrototype)_StudentPrototype.MemberwiseClone();//这种是浅克隆(默认)
// 深克隆: 方法一: 在CreateInstance()方法中浅克隆之后对所有引用类型(除字符串)使用new 创建对象
studentPrototypes.cLass = new CLass()
{
Num = 1, Remark = "高级班"
}; //这样就是深克隆
return(studentPrototypes);
}
static StudentPrototype()
{
_StudentPrototype = new StudentPrototype()
{
Id = 337,
Name = "歌神",
cLass = new CLass()
{
Num = 1, Remark = "高级班"
}
};
}
static void Main(string[] args)
{
try
{
#region ---性能测试---
//Console.WriteLine("********普通***********");
//for (int i = 0; i < 5; i++)
//{
// Student student = new Student();
// student.Study();
//}
//Console.WriteLine("*********单例模式**********");
//for (int i = 0; i < 5; i++)
//{
// Stopwatch stopwatch = Stopwatch.StartNew();
// StudentSingleton student = StudentSingleton.CreateInstance();
// student.Study();
// Console.WriteLine("花费时间: {0}", stopwatch.ElapsedMilliseconds);
//}
//Console.WriteLine("*********原型模式**********");
//for (int i = 0; i < 5; i++)
//{
// Stopwatch stopwatch = Stopwatch.StartNew();
// StudentPrototype student = StudentPrototype.CreateInstance();
// student.Study();
// Console.WriteLine("花费时间: {0}", stopwatch.ElapsedMilliseconds);
//}
#endregion
#region ---单例的限制--------------------,使用原型模式解决些问题
//Console.WriteLine("*********单例的限制**********");
//{
// StudentSingleton student1 = StudentSingleton.CreateInstance();
// StudentSingleton student2 = StudentSingleton.CreateInstance();
// student1.Id = 506;
// student1.Name = "YOYO";
// Console.WriteLine("student1 Id {0} Name {1}", student1.Id, student1.Name);
// Console.WriteLine("student2 Id {0} Name {1}", student2.Id, student2.Name);
//}
//Console.WriteLine("*********原型模式,解决单例的这种限制**********");
//{
// StudentPrototype student1 = StudentPrototype.CreateInstance();
// StudentPrototype student2 = StudentPrototype.CreateInstance();
// student1.Id = 999;
// student1.Name = "生存能力";
// Console.WriteLine("student1 Id {0} Name {1}", student1.Id, student1.Name);
// Console.WriteLine("student2 Id {0} Name {1}", student2.Id, student2.Name);
//}
#endregion
#region ---浅克隆VS深克隆---
//Console.WriteLine("*********浅克隆/深克隆**********");
//{
// StudentPrototype student1 = StudentPrototype.CreateInstance();
// StudentPrototype student2 = StudentPrototype.CreateInstance();
// student1.Id = 999;
// student1.Name = "生存能力";//== new String("生存能力")
// Console.WriteLine("student1 Id {0} Name {1} cLass.Remark {2}", student1.Id, student1.Name, student1.cLass.Remark);
// Console.WriteLine("student2 Id {0} Name {1} cLass.Remark {2}", student2.Id, student2.Name, student2.cLass.Remark);
// ////直接在原值上修改,
// student1.cLass.Num = 2;
// student1.cLass.Remark = "C++ 班";
// //以下这样赋值就不会被覆盖, 这时因为(new)开辟了一个新的内存空间, 新实例化了新的对象
// //student1.cLass = new CLass() { Num = 3, Remark = "PhonShop 班" };
// Console.WriteLine("student1.cLass.Num {0} cLass.Remark {1}", student1.cLass.Num, student1.cLass.Remark);
// Console.WriteLine("student2.cLass.Num {0} cLass.Remark {1}", student2.cLass.Num, student2.cLass.Remark);
//}
//Console.WriteLine("*********深克隆方法二: 使用二进制序列化方式**********");
//{
// StudentPrototype student1 = StudentPrototype.CreateInstanceSerial();
// StudentPrototype student2 = StudentPrototype.CreateInstanceSerial();
// student1.Id = 999;
// student1.Name = "生存能力";
// Console.WriteLine("student1 Id {0} Name {1} cLass.Remark {2}", student1.Id, student1.Name, student1.cLass.Remark);
// Console.WriteLine("student2 Id {0} Name {1} cLass.Remark {2}", student2.Id, student2.Name, student2.cLass.Remark);
// ////直接在原值上修改,
// student1.cLass.Num = 2;
// student1.cLass.Remark = "C++ 班";
// Console.WriteLine("student1.cLass.Num {0} cLass.Remark {1}", student1.cLass.Num, student1.cLass.Remark);
// Console.WriteLine("student2.cLass.Num {0} cLass.Remark {1}", student2.cLass.Num, student2.cLass.Remark);
//}
#endregion
#region ---性能再测试---
Console.WriteLine("*********深克隆,方式一**********");
for (int i = 0; i < 5; i++)
{
Stopwatch stopwatch = Stopwatch.StartNew();
StudentPrototype student = StudentPrototype.CreateInstance();
student.Study();
Console.WriteLine("花费时间: {0}", stopwatch.ElapsedMilliseconds);
}
Console.WriteLine("*********深克隆,方式二**********");
for (int i = 0; i < 5; i++)
{
Stopwatch stopwatch = Stopwatch.StartNew();
StudentPrototype student = StudentPrototype.CreateInstanceSerial();
student.Study();
Console.WriteLine("花费时间: {0}", stopwatch.ElapsedMilliseconds);
}
#endregion
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.Read();
}
