异步/等待和同步代码常见吗？

本文介绍了异步/等待和同步代码常见吗？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我创建了一个包含每个方法的同步和异步版本的库。每种方法都有很多共同的代码，但方法中的差异是存在await关键字和方法签名。 我想做的是有一种方法，所以我不必在两种方法之间复制代码。我只是不确定如何做到这一点。我已经读过，包装任何一个版本和从另一个版本调用是一个坏主意。 以下是我所谈论的一个例子。我有两种GetDirectoryListing方法 - GetDirectoryListing和GetDirectoryListingAsync。我希望有办法消除重复的代码。 谢谢。I have created a library that has both synchronous and asynchronous versions of each method. Each method has a lot of common code, but the differences within the methods are the presence of the await keyword and the method signature.What I would like to do is have a way so that I don't have to replicate code between the two methods. I am just not sure as to how to do this. I have read that wrapping either version and calling from the other one is a bad idea.Below is an example of what I am talking about. I have two methods for GetDirectoryListing - GetDirectoryListing and GetDirectoryListingAsync. I'd like to have a way to eliminate the duplicated code.Thanks.public static List<string> GetDirectoryListing(FTPLoginCredentials credentials) { List<string> directoryListing = new List<string>(); FtpWebRequest ftpReq = CreateFtpWebRequest(credentials, WebRequestMethods.Ftp.ListDirectory); using (FtpWebResponse ftpResp = (FtpWebResponse)ftpReq.GetResponse()) { string html; using (StreamReader sr = new StreamReader(ftpResp.GetResponseStream(), System.Text.Encoding.UTF8)) html = sr.ReadToEnd(); directoryListing.AddRange(html.Split(new string[] { Environment.NewLine, "\r" }, StringSplitOptions.RemoveEmptyEntries)); } return directoryListing; } }public static async Task<List<string>> GetDirectoryListingAsync(FTPLoginCredentials credentials) { List<string> directoryListing = new List<string>(); FtpWebRequest ftpReq = CreateFtpWebRequest(credentials, WebRequestMethods.Ftp.ListDirectory); using (FtpWebResponse ftpResp = (FtpWebResponse)await ftpReq.GetResponseAsync()) { string html; using (StreamReader sr = new StreamReader(ftpResp.GetResponseStream(), System.Text.Encoding.UTF8)) html = await sr.ReadToEndAsync().ConfigureAwait(false); directoryListing.AddRange(html.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries)); } return directoryListing; }推荐答案public static async Task<list<string>> GetDirectoryListingAsync(FTPLoginCredentials credentials){ List<string> directoryListing = new List<string>(); FtpWebRequest ftpReq = CreateFtpWebRequest(credentials, WebRequestMethods.Ftp.ListDirectory); using (FtpWebResponse ftpResp = (FtpWebResponse)await ftpReq.GetResponseAsync()) { string html; using (StreamReader sr = new StreamReader(ftpResp.GetResponseStream(), System.Text.Encoding.UTF8)) html = await sr.ReadToEndAsync().ConfigureAwait(false); directoryListing.AddRange(html.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries)); } return directoryListing;}public static List<string> GetDirectoryListing(FTPLoginCredentials credentials){ Task<list<string>> task = GetDirectoryListingAsync(credentials); task.Wait(); return task.Result;} 这篇关于异步/等待和同步代码常见吗？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！