2.C#中通过委托Func消除重复代码

阅读目录
   一：重复的代码

　二：C#中通过委托Func消除重复代码

一：重复代码
   

 public class Persion
     {
         public string Name { get; set; }
         public int Age { get; set; }

         public Persion GetPersionInfo()
         {
             try
             {
                 Persion persion = new Persion();
                 persion.Name = "David";
                 persion.Age = ;

                 return persion;
             }
             catch (Exception ex)
             {
                 return null;
             }
         }
     }

  public class Employee
     {
         public string Post { get; set; }
         public int Salary { get; set; }

         public Employee GetEmployeeInfo()
         {
             try
             {
                 Employee employee = new Employee();
                 employee.Post = "开发";
                 employee.Salary = ;

                 return employee;
             }
             catch(Exception ex)
             {
                 return null;
             }
         }
     }

　　二：C#中通过委托Func消除重复代码
     如下所示，try catch 语句只有一次了，这样就消除了GetPersionInfo方法和GetEmployeeInfo的try catch语句

 public class Utillity
     {
         public static T TryExecute<T>(Func<T> func, string methodName)
         {
             try
             {
                 return func();
             }
             catch (Exception ex)
             {
                 Console.WriteLine("MethodName:" + methodName + " Error:" + ex.Message);
                 return default(T);
             }
         }
     }

 public class Persion
     {
         public string Name { get; set; }
         public int Age { get; set; }

         public Persion GetPersionInfo()
         {
             return Utillity.TryExecute<Persion>(() =>
             {
                 Persion persion = new Persion();
                 persion.Name = "David";
                 persion.Age = ;

                 return persion;
             }
             , "GetPersionInfo");
         }
     }

 public class Employee
     {
         public string Post { get; set; }
         public int Salary { get; set; }

         public Employee GetEmployeeInfo()
         {
             return Utillity.TryExecute(() =>
             {
                 Employee employee = new Employee();
                 employee.Post = "开发";
                 employee.Salary = ;

                 return employee;
             }
             , "GetEmployeeInfo");

         }
     }

  class Program
     {
         static void Main(string[] args)
         {
             Persion persion1 = new Persion();
             Persion persion2 = persion1.GetPersionInfo();

             Console.WriteLine("This persion name is {0}", persion2.Name);
             Console.WriteLine("This persion age is {0}", persion2.Age);

             Employee employee1 = new Employee();
             Employee employee2 = employee1.GetEmployeeInfo();

             Console.WriteLine("This employee post is {0}", employee2.Post);
             Console.WriteLine("This employee salary is {0}", employee2.Salary);

             Console.ReadLine();
         }
     }