使用C#上传文件到Google Drive

using Google.Apis.Auth.OAuth2;
using Google.Apis.Drive.v3;
using Google.Apis.Services;
using Google.Apis.Upload;
using System;
using System.IO;

class Program
{
    static void Main(string[] args)
    {
        // 客户端ID和API密钥
        string clientId = "YOUR_CLIENT_ID";
        string clientSecret = "YOUR_CLIENT_SECRET";

        // 授权范围
        string[] scopes = { DriveService.Scope.Drive };

        // 用户授权
        UserCredential credential;
        using (var stream = new FileStream("credentials.json", FileMode.Open, FileAccess.Read))
        {
            credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
                GoogleClientSecrets.Load(stream).Secrets,
                scopes,
                "user",
                System.Threading.CancellationToken.None).Result;
        }

        // 创建Drive服务
        var service = new DriveService(new BaseClientService.Initializer()
        {
            HttpClientInitializer = credential,
            ApplicationName = "Your Application Name",
        });

        // 上传文件
        string filePath = "path_to_your_file";
        string fileName = "your_file_name";
        string mimeType = "your_file_mime_type";

        var fileMetadata = new Google.Apis.Drive.v3.Data.File()
        {
            Name = fileName
        };

        FilesResource.CreateMediaUpload request;
        using (var stream = new FileStream(filePath, FileMode.Open))
        {
            request = service.Files.Create(fileMetadata, stream, mimeType);
            request.Fields = "id";
            request.Upload();
        }

        var file = request.ResponseBody;
        Console.WriteLine("File ID: " + file.Id);
    }
}