POST https://dev.azure.com/{organization}/{project}/_apis/git/repositories/{repositoryId}/pullRequests/{pullRequestId}/threads?api-version=6.0

{
  "comments": [
    {
      "parentCommentId": 0,
      "content": "这里可能需要添加异常处理",
      "commentType": 1
    }
  ],
  "status": 1
}

using Microsoft.TeamFoundation.SourceControl.WebApi;
using Microsoft.VisualStudio.Services.Common;

// 连接TFS/Azure DevOps
VssConnection connection = new VssConnection(new Uri("http://yourtfsserver:8080/tfs"), new VssCredentials());
GitHttpClient gitClient = connection.GetClient<GitHttpClient>();

// 创建评论
GitPullRequestComment comment = new GitPullRequestComment()
{
    Content = "建议使用更高效的算法",
    CommentType = CommentType.Text
};

// 创建评论线程
GitPullRequestCommentThread thread = new GitPullRequestCommentThread()
{
    Comments = new List<GitPullRequestComment> { comment },
    Status = CommentThreadStatus.Active
};

// 添加到拉取请求
await gitClient.CreateThreadAsync(thread, repositoryId, pullRequestId);

{
  "comments": [
    {
      "content": "这个变量命名不规范",
      "commentType": 1
    }
  ],
  "status": 1,
  "threadContext": {
    "filePath": "src/controllers/userController.js",
    "rightFileStart": {
      "line": 42,
      "offset": 1
    },
    "rightFileEnd": {
      "line": 42,
      "offset": 10
    }
  }
}