byte

问题 I would like to convert a java.net.InetAddress and I fight with the signed / unsigned problems. Such a pain. I read convert from short to byte and viceversa in Java and Why byte b = (byte) 0xFF is equals to integer -1? And as a result came up with: final byte [] pumpeIPAddressRaw = java.net.InetAddress.getByName (pumpeIPAddressName).getAddress (); final long pumpeIPAddress = ((pumpeIPAddressRaw [0] & 0xFF) << (3*8)) + ((pumpeIPAddressRaw [1] & 0xFF) << (2*8)) + ((pumpeIPAddressRaw [2] & 0xFF)

问题 I used imageio.get_reader(BytesIO(a), 'ffmpeg') to load a bytes image and save it as normal image. But the below error throws when I read the image using imageio.get_reader(BytesIO(a), 'ffmpeg') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/tango/anaconda3/lib/python3.6/site-packages/imageio/core/functions.py", line 186, in get_reader return format.get_reader(request) File "/home/tango/anaconda3/lib/python3.6/site-packages/imageio/core/format.py", line 164

问题 I need to create a client-server example over TCP. In the client side I read 2 numbers and I send them to the server. The problem I faced is that I can't convert from []byte to int , because the communication accept only data of type []byte . Is there any way to convert []byte to int or I can send int to the server? Some sample code will be really appreciated. Thanks. 回答1: (reposting this answer) You can use encoding/binary's ByteOrder to do this for 16, 32, 64 bit types Play package main

问题 I need to create a client-server example over TCP. In the client side I read 2 numbers and I send them to the server. The problem I faced is that I can't convert from []byte to int , because the communication accept only data of type []byte . Is there any way to convert []byte to int or I can send int to the server? Some sample code will be really appreciated. Thanks. 回答1: (reposting this answer) You can use encoding/binary's ByteOrder to do this for 16, 32, 64 bit types Play package main

问题 So I would like to encode numbers as small as 0 and as high as very high (32-bit, 64-bit, other 8-bit multiples...). The simple approach is to just use the computer architecture's built-in support for "word" size or whatever, so like 32-bit or 64-bit are the common cases, so integers limited to that size. But I would like to do a theoretical thing and see if there is a way to encode arbitrarily large numbers using a sequence of 8-bit numbers. But then as a caveat, I want to know when we've

问题 i am actually tryin to convert a csharp code to c... below is the C# code.. CString data = "world is beautiful"; Byte[] quote = ASCIIEncoding.UTF8.GetBytes(data); in the above code... it converts the string into bytes..similarily is ther a way that i can convert it using C.. Can any body tell what wud be the quivalent code in C? Please help me guys 回答1: Well CString is a C++ class so doing it in C is a little unlikely. But if you wish to get it as a standard multi-byte encoded string then you

问题 I am using AES to encrypt files. The problem first came when i tried to encrypt a large file. So i did some reading online and figured that i need to use a buffer and only encrypt bytes of data at a time. I divided my plaintext into chunks of 8192 bytes of data and then applied the encryption operation on each of these chunks but I am still getting the out of memory error. public static File encrypt(File f, byte[] key) throws Exception { System.out.println("Starting Encryption"); byte[]

问题 I am using AES to encrypt files. The problem first came when i tried to encrypt a large file. So i did some reading online and figured that i need to use a buffer and only encrypt bytes of data at a time. I divided my plaintext into chunks of 8192 bytes of data and then applied the encryption operation on each of these chunks but I am still getting the out of memory error. public static File encrypt(File f, byte[] key) throws Exception { System.out.println("Starting Encryption"); byte[]

问题 What's an efficient way of splitting a String into chunks of 1024 bytes in java? If there is more than one chunk then the header(fixed size string) needs to be repeated in all subsequent chunks. 回答1: Strings and bytes are two completely different things, so wanting to split a String into bytes is as meaningless as wanting to split a painting into verses. What is it that you actually want to do? To convert between strings and bytes, you need to specify an encoding that can encode all the

问题 I'm struggling with an easy task. At least it looks like it should be, at first sight. I have a TextBox that contains HEX strings. They are always two hex digits in length (e.g. AA ). I want to convert textbox3.Text to a Byte . Here's what I have so far: Dim checking As String = textbox3.Text Dim a = Convert.ToByte(checking) RichTextBox1.Text = a.ToString But it throws a SystemFormatException . 回答1: The Convert.ToByte method provides an overload which takes a string argument followed by a