用C#读取文件,方法不同

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string path = @"C:\example.txt";
        try
        {
            string text = File.ReadAllText(path);
            Console.WriteLine(text);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
    }
}

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string path = @"C:\example.txt";
        try
        {
            using (StreamReader sr = new StreamReader(path))
            {
                string line;
                while ((line = sr.ReadLine()) != null)
                {
                    Console.WriteLine(line);
                }
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
    }
}

using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.WindowsAzure.Storage;
using Microsoft.WindowsAzure.Storage.Blob;

class Program
{
    static async Task Main()
    {
        string connectionString = "your_connection_string";
        string containerName = "your_container_name";
        string blobName = "your_blob_name";

        CloudStorageAccount storageAccount = CloudStorageAccount.Parse(connectionString);
        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
        CloudBlobContainer container = blobClient.GetContainerReference(containerName);
        CloudBlockBlob blockBlob = container.GetBlockBlobReference(blobName);

        using (MemoryStream ms = new MemoryStream())
        {
            await blockBlob.DownloadToStreamAsync(ms);
            string text = System.Text.Encoding.UTF8.GetString(ms.ToArray());
            Console.WriteLine(text);
        }
    }
}