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UWP 文件读写API

發布時間:2025/7/14 编程问答 27 豆豆
生活随笔 收集整理的這篇文章主要介紹了 UWP 文件读写API 小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

1. 讀取普通Pictures下面文件:

public async Task ShowFileContent(string fileName) {string msgString = "";IStorageFolder applicationFolder = KnownFolders.PicturesLibrary;IStorageFile file = await applicationFolder.CreateFileAsync(fileName, CreationCollisionOption.OpenIfExists);IRandomAccessStream accessStream = await file.OpenReadAsync();using (StreamReader streamReader = new StreamReader(accessStream.AsStreamForRead((int)accessStream.Size))){string content = streamReader.ReadToEnd();if ("" == content)msgString = "null";elsemsgString = content;}await new MessageDialog(msgString).ShowAsync(); }

2. 讀二進制文件,轉16進制

IStorageFolder applicationFolder = KnownFolders.PicturesLibrary; IStorageFile file = await applicationFolder.CreateFileAsync(fileName, CreationCollisionOption.OpenIfExists);IRandomAccessStream accessStream = await file.OpenReadAsync(); using (BinaryReader binReader = new BinaryReader(accessStream.AsStreamForRead((int)accessStream.Size))) {byte[] buffer = new byte[(int)accessStream.Size];binReader.Read(buffer, 0, buffer.Length);string fullString = "";for(int i=3;i<buffer.Length;i++){fullString += String.Format("{0:X2}", buffer[i]);}string WifiMAC = fullString.Substring(6,12); }

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轉載于:https://www.cnblogs.com/kunkka/p/6932204.html

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