MiniExcel/drafts/【LINQ】Deferred Execution.linq

<Query Kind="Program">
  <NuGetReference>Dapper</NuGetReference>
  <NuGetReference>MiniExcel</NuGetReference>
  <NuGetReference>Newtonsoft.Json</NuGetReference>
  <NuGetReference>System.Data.SqlClient</NuGetReference>
  <Namespace>Dapper</Namespace>
  <Namespace>MiniExcelLibs</Namespace>
  <Namespace>Newtonsoft.Json</Namespace>
  <RemoveNamespace>System.Data</RemoveNamespace>
  <RemoveNamespace>System.Diagnostics</RemoveNamespace>
  <RemoveNamespace>System.Linq.Expressions</RemoveNamespace>
  <RemoveNamespace>System.Text</RemoveNamespace>
  <RemoveNamespace>System.Text.RegularExpressions</RemoveNamespace>
  <RemoveNamespace>System.Threading</RemoveNamespace>
  <RemoveNamespace>System.Transactions</RemoveNamespace>
  <RemoveNamespace>System.Xml</RemoveNamespace>
  <RemoveNamespace>System.Xml.Linq</RemoveNamespace>
  <RemoveNamespace>System.Xml.XPath</RemoveNamespace>
</Query>

// 【LINQ】Deferred Execution
void Main()
{
	var input = GetFooData();
	{
		var output = input.Skip(10).Take(5); //console output : 0..14
		output.Count();
	}

	{
		var output = input.ToList().Skip(10).Take(5); //console output : 0..99
		output.Count();
	}
}

IEnumerable<int> GetFooData()
{
	for (int i = 0; i < 100; i++)
	{
		Console.WriteLine(i);
		yield return i;
	}
}