Expression表达式资料

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Expression创建对象

http://www.cnblogs.com/coolcode/archive/2009/12/09/ExpressionCreateInstance.html

Expression

http://www.tuicool.com/articles/AZR3ua2

MemberInitExpression 类

可以动态构建对象

https://msdn.microsoft.com/zh-cn/library/system.linq.expressions.memberinitexpression.aspx

class Animal{    public string Species {get; set;}    public int Age {get; set;}}public static void CreateMemberInitExpression(){    System.Linq.Expressions.NewExpression newAnimal =        System.Linq.Expressions.Expression.New(typeof(Animal));    System.Reflection.MemberInfo speciesMember =        typeof(Animal).GetMember("Species")[0];    System.Reflection.MemberInfo ageMember =        typeof(Animal).GetMember("Age")[0];    // Create a MemberBinding object for each member    // that you want to initialize.    System.Linq.Expressions.MemberBinding speciesMemberBinding =        System.Linq.Expressions.Expression.Bind(            speciesMember,            System.Linq.Expressions.Expression.Constant("horse"));    System.Linq.Expressions.MemberBinding ageMemberBinding =        System.Linq.Expressions.Expression.Bind(            ageMember,            System.Linq.Expressions.Expression.Constant(12));    // Create a MemberInitExpression that represents initializing    // two members of the 'Animal' class.    System.Linq.Expressions.MemberInitExpression memberInitExpression =        System.Linq.Expressions.Expression.MemberInit(            newAnimal,            speciesMemberBinding,            ageMemberBinding);    Console.WriteLine(memberInitExpression.ToString());    // This code produces the following output:    //    // new Animal() {Species = "horse", Age = 12}}

使用Expression Tree构建带有参数、本地变量和返回值的Lambda

http://blog.csdn.net/cauchy8389/article/details/23529857

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