在企业级开发中使用Try…Catch…会影响效率吗？

测试时用到的类
using
 System;

using
 System.Diagnostics;

namespace
 WebApplication3
{
    
public
 
static
 
class
 Test
    {
        
public
 
static
 
void
 NoTry()
        {
            
for
 (
int
 i 
=
 
0
; i 
<
 
10000
; i
++
)
            {
                System.Web.HttpContext.Current.Response.Write(i.ToString());       
            }
        }

        
public
 
static
 
void
 HaveTry()
        {
            
try

            {
                
for
 (
int
 i 
=
 
0
; i 
<
 
10000
; i
++
)
                {
                    System.Web.HttpContext.Current.Response.Write(i.ToString());
                }
            }
            
catch
(Exception err)
            {
                System.Web.HttpContext.Current.Response.Write(err.ToString());
            }
            
        }

        
public
 
static
 
long
 HaveException()
        {
            Stopwatch sw 
=
 
new
 Stopwatch();
            sw.Start();
            
try

            {
                
for
 (
int
 i 
=
 
0
; i 
<
 
10000
; i
++
)
                {
                    System.Web.HttpContext.Current.Response.Write(i.ToString());
                }
                
throw
 
new
 Exception(
“
Kevin让我异常了
“
);
            }
            
catch
 (Exception err)
            {
                System.Web.HttpContext.Current.Response.Write(err.ToString());
            }
            sw.Stop();
            
return
 sw.ElapsedMilliseconds;
        }
    }
}