static void Main()
{
List <int> listOriginal = new List <int>()
{
1, 2, 3, 4, 5, 6, 7, 8, 9
};
Func <List <int> > func = () =>
{
List <int> list = new List <int>();
foreach (var item in listOriginal)
{
list.Add(item * 2);
}
return(list);
};
List <int> listNew = func();
foreach (var item in listNew)
{
Console.WriteLine(item);
}
DelegateModifier modifier = () =>
{
for (int i = listOriginal.Count - 1; i > 0; i--)
{
if (listOriginal[i] % 2 != 0)
{
listOriginal[i] = listOriginal[i] + 1;
}
}
};
modifier();
foreach (var item in listOriginal)
{
Console.WriteLine(item);
}
Console.ReadKey();
}
static void Main(string[] args)
{
List <int> listOriginal = new List <int>()
{
1, 2, 3, 4, 5, 6, 7, 8, 9
};
Func <List <int> > func = () =>
{
List <int> list = new List <int>();
foreach (var item in listOriginal)
{
list.Add(item * 2);
}
return(list);
};
List <int> listNew = func();
foreach (var item in listNew)
{
Console.WriteLine(item);
}
DelegateModifier modifier = () =>
{
for (int i = listOriginal.Count - 1; i > 0; i--)
{
if (listOriginal[i] % 2 != 0)
{
listOriginal[i] = listOriginal[i] + 1;
}
}
};
modifier();
foreach (var item in listOriginal)
{
Console.WriteLine(item);
}
Console.WriteLine(new string('-', 50));
ParameterExpression x = Expression.Parameter(typeof(int), "x");
var constant1 = Expression.Constant(2);
var constant2 = Expression.Constant(3);
var constant3 = Expression.Constant(4);
var subBody = Expression.Subtract(x, constant2);
var multBody = Expression.Multiply(constant1, subBody);
var addBody = Expression.Add(multBody, x);
var body = Expression.Subtract(addBody, constant3);
var expression = Expression.Lambda <Func <int, int> >(body, x);
Console.WriteLine(expression.Body);
Func <int, int> funcs = expression.Compile();
Console.WriteLine("Result: " + funcs(4));
Console.ReadKey();
}
