直接方式，反射方式，dynamic方式性能比较-创新互联
先上测试代码
using System.Text;
namespace Model
{
public partial class Class1
{
public Class1()
{ }
private string _s = "";
private int _i = 0;
private decimal _d = 0;
private StringBuilder _sb = new StringBuilder();
public string S
{
set { _s = value; }
get { return _s; }
}
public int I
{
set { _i = value; }
get { return _i; }
}
public decimal D
{
set { _d = value; }
get { return _d; }
}
public StringBuilder SB
{
set { _sb = value; }
get { return _sb; }
}
public int func()
{
int s = 0;
for (int i = 0; i < 1000; i++)
{
s = s + i;
}
return s;
}
}
}
///////////////////////////////////////////////////////////////////////
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Model;
using System.Reflection;
using System.Diagnostics;
namespace testReflect
{
class Program
{
static void Main(string[] args)
{
const int count = 100000;
Console.WriteLine("count="+count);
Stopwatch sw = new Stopwatch();
StringBuilder test = new StringBuilder();
sw.Restart();
for (int i = 0; i < count; i++)
{
Class1 m = new Class1();
m.D = 100;
m.I = 200;
m.S = "string";
m.SB = new StringBuilder("StringBuilder");
test.Append(m.D);
test.Append(m.I);
test.Append(m.S);
test.Append(m.SB);
}
sw.Stop();
Console.WriteLine("直接创建,赋值并访问内存中对象属性： " + sw.ElapsedTicks);
//Console.WriteLine("直接创建,赋值并访问内存中对象属性： " + sw.ElapsedTicks);
long basic = sw.ElapsedTicks;
sw.Restart();
test = new StringBuilder();
for (int i = 0; i < count; i++)
{
var t = typeof(Class1);
ConstructorInfo ct = t.GetConstructor(new Type[] { });
var m = ct.Invoke(null);
PropertyInfo pd = t.GetProperty("D");
pd.SetValue(m, 100m, null);
PropertyInfo pi = t.GetProperty("I");
pi.SetValue(m, 200, null);
PropertyInfo ps = t.GetProperty("S");
ps.SetValue(m, "string", null);
PropertyInfo psb = t.GetProperty("StringBuilder");
PropertyInfo[] props = m.GetType().GetProperties();
foreach (var p in props)
{
test.Append(p.GetValue(m, null));
}
}
sw.Stop();
Console.WriteLine("反射创建，赋值并访问内存中对象属性： " + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
test = new StringBuilder();
sw.Restart();
for (int i = 0; i < count; i++)
{
dynamic dm = new Class1();
dm.D = 100;
dm.I = 200;
dm.S = "string";
dm.SB = new StringBuilder("StringBuilder");
test.Append(dm.D);
test.Append(dm.I);
test.Append(dm.S);
test.Append(dm.SB);
}
sw.Stop();
Console.WriteLine("dynamic直接创建，赋值并访问内存中对象属性：" + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
test = new StringBuilder();
sw.Restart();
for (int i = 0; i < count; i++)
{
var t = typeof(Class1);
ConstructorInfo ct = t.GetConstructor(new Type[] { });
dynamic dm = ct.Invoke(null);
dm.D = 100;
dm.I = 200;
dm.S = "string";
dm.SB = new StringBuilder("StringBuilder");
test.Append(dm.D);
test.Append(dm.I);
test.Append(dm.S);
test.Append(dm.SB);
}
sw.Stop();
Console.WriteLine("dynamic反射创建，赋值并访问内存中对象属性：" + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
test = new StringBuilder();
sw.Restart();
for (int i = 0; i < count; i++)
{
Class1 m = new Class1();
test.Append(m.func());
}
sw.Stop();
Console.WriteLine("直接调用内存中对象方法： " + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
sw.Restart();
test = new StringBuilder();
for (int i = 0; i < count; i++)
{
var t = typeof(Class1);
MethodInfo meth = t.GetMethod("func");
ConstructorInfo ct = t.GetConstructor(new Type[] { });
test.Append(meth.Invoke(ct.Invoke(null), null));
}
sw.Stop();
Console.WriteLine("反射调用内存中对象方法： " + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
test = new StringBuilder();
sw.Restart();
for (int i = 0; i < count; i++)
{
dynamic dm = new Class1();
test.Append(dm.func());
}
sw.Stop();
Console.WriteLine("dynamic直接调用内存中对象方法：" + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
test = new StringBuilder();
sw.Restart();
for (int i = 0; i < count; i++)
{
var t = typeof(Class1);
ConstructorInfo ct = t.GetConstructor(new Type[] { });
dynamic dm = ct.Invoke(null);
test.Append(dm.func());
}
sw.Stop();
Console.WriteLine("dynamic反射调用内存中对象方法：" + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
Console.WriteLine("###############################");
sw.Restart();
test = new StringBuilder();
for (int i = 0; i < count; i++)
{
Assembly a = Assembly.LoadFile(AppDomain.CurrentDomain.BaseDirectory + @"\Model.dll");
var t = a.GetType("Model.Class1");
ConstructorInfo ct = t.GetConstructor(new Type[] { });
var rm = ct.Invoke(null);
PropertyInfo pd = t.GetProperty("D");
pd.SetValue(rm, 100m, null);
PropertyInfo pi = t.GetProperty("I");
pi.SetValue(rm, 200, null);
PropertyInfo ps = t.GetProperty("S");
ps.SetValue(rm, "string", null);
PropertyInfo psb = t.GetProperty("SB");
psb.SetValue(rm, new StringBuilder("StringBuilder"), null);
PropertyInfo[] props = t.GetProperties();
foreach (var p in props)
{
test.Append(p.GetValue(rm, null));
}
}
sw.Stop();
Console.WriteLine("使用反射加载程序集，创建，赋值，访问，对象属性： " + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
sw.Restart();
test = new StringBuilder();
for (int i = 0; i < count; i++)
{
Assembly a = Assembly.LoadFile(AppDomain.CurrentDomain.BaseDirectory + @"\Model.dll");
var t = a.GetType("Model.Class1");
ConstructorInfo ct = t.GetConstructor(new Type[] { });
dynamic dm = ct.Invoke(null);
dm.D = 100m;
dm.I = 200;
dm.S = "string";
dm.SB = new StringBuilder("StringBuilder");
test.Append(dm.D);
test.Append(dm.I);
test.Append(dm.S);
test.Append(dm.SB);
}
sw.Stop();
Console.WriteLine("dynamic赋值，使用反射加载程序集，创建，赋值，访问，对象属性： " + sw.ElapsedTicks + "(" + sw.ElapsedTicks / basic + ")");
}
}
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