UWP 文件读写API
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UWP 文件读写API
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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); }?
轉載于:https://www.cnblogs.com/kunkka/p/6932204.html
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