万物只要有开始，就必有结束

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Program.cs

class Program    {        static void Main(string[] args)        {                        Expression
    
     
      > expression = (a, b) => a + b;            Console.WriteLine("这是表达式主体{0}", expression.Body);            Console.WriteLine("这是实际表达式{0}", expression);            //int d = expression(3, 5);            Func
      
        function = (a, b) => a + b;            Func
       
         function2 = (a,b) => (a < b);                       Expression
        
         
          > Expression2 = (a, b) => (a < b); Console.WriteLine("这是expression2的主体{0}", Expression2.Body); Expression
          
           
            > lessThan = i => i < 5; Console.WriteLine(lessThan); Console.WriteLine("表达式的结果{0} ", lessThan); Expression
            
             
              > plusEquals = (a) => (a+a); Console.WriteLine("这是plusEqual的主体{0}", plusEquals.Body); Console.WriteLine(plusEquals); //Int32 c = plusEquals(3); int c = plusEquals.Compile()(3); Console.WriteLine("这里是plusEquals表达式的结果{0}", c); //我想在这里做一个sql查询 //var query = from cus in db.Customers where cus.City == "Nantes" select new { cus.City, cus.CompanyName }; Console.ReadLine(); } }
             
            
           
          
         
        
       
      
     
    

运行结果如图:

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