FileStreamをMemoryStreamに変換する方法を教えてください.

     
     
     
     

      
      
      
      using
      
      
      
      (FileStream fs 
      
      
      
      =
      
      
      
       File.OpenRead(filePath)) { 
      
      
      
      int
      
      
      
       length 
      
      
      
      =
      
      
      
       (
      
      
      
      int
      
      
      
      )fs.Length; 
      
      
      
      byte
      
      
      
      [] data 
      
      
      
      =
      
      
      
       
      
      
      
      new
      
      
      
       
      
      
      
      byte
      
      
      
      [length]; fs.Position 
      
      
      
      =
      
      
      
       
      
      
      
      0
      
      
      
      ; fs.Read(data, 
      
      
      
      0
      
      
      
      , length); MemoryStream ms 
      
      
      
      =
      
      
      
       
      
      
      
      new
      
      
      
       MemoryStream(data); }
     
     
     
     

  
  
  
  

   
   
   
    
  
  
  
  
  
  
  
  

   
   
   
   

       File.ReadAllBytes(filePath)  。 
    
 
     

       C# code 
     
 
     
 
      

       
       
       
       

        
        
        
        byte
        
        
        
        [] data 
        
        
        
        =
        
        
        
         File.ReadAllBytes(filePath); MemoryStream ms 
        
        
        
        =
        
        
        
         
        
        
        
        new
        
        
        
         MemoryStream(data);