1. Boxing, unpacking or aliases many of the introduction of C #. NET learning experience books on the introduction of the int-> Int32 is a boxing process, the reverse is the process of unpacking. This is true of many other variable types, such as short <-> int16,long <->int64. For the average programmer, it is not necessary to understand this process, because these boxes and unboxing actions can be automatically completed, do not need to write code to intervene. But we need to remember that ...
Base64 is one of the most commonly used encodings, such as the development of passing parameters, the <img/> tags in modern browsers to render pictures directly through Base64 strings, and for messages and so on. The BASE64 encoding is defined in RFC2045, which is defined as: Base64 content transfer encoding is designed to describe the 8-bit byte of any sequence as a form that is not easily recognized directly by the person. We know that any data is stored in binary form on the computer. One byte is 8 bits, one character is stored in the computer ...
Hadoop serialization and Writable Interface (i) introduced the Hadoop serialization, the Hadoop writable interface and how to customize your own writable class, and in this article we continue to introduce the Hadoop writable class, This time we are concerned about the length of bytes occupied after the writable instance was serialized, and the composition of the sequence of bytes after the writable instance was serialized. Why to consider the byte length of the writable class large data program ...
1 Introduction e-mail plays an important role in people's work. According to statistics, the average Chinese per user receives 4.4 mails a week, sends 3.6 emails. But the primary protocol for e-mail, such as SMTP, is delivered in plaintext. This information may be obtained by a third party when it passes through an untrusted internet. In a modern society that attaches importance to information security, it clearly meets the requirements. How can this information be kept confidential without tampering or forgery? The PGP (Pretty-Privacy) described in this article is a kind of software, which is mainly used for electric ...
Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall recently in the study of JavaScript found some of the more supernatural things. It's a bit of a typeof. For example: alert (nan = = Nan);//The result is false. Alert (typeof nan!= nan ...)
Mpxplay. EXE [options] to play/convert file name or file list playlist:-@ playlist:http://www.aliyun.com/zixun/aggregation/17223.html "> playlist file (such as M3u,mxu) -@d PLAYLIST: Point singing mode (put the list of files to play on the left, that is, put the song into the queue)-@s PLAYLIST. Playlists: Will ...
Fifth section Shell Advanced 1, Know import table author: [YAtEs] [Jamesluton@hotmail.com] Translator: HYING[CCG] Title: PE Input Table Description There are a lot of articles about PE file, but I intend to write an article about the input table, Because it is useful for cracking. I want to explain it the best way is to give an example, you can follow me step by step, step-by-step thinking, and finally you will fully understand that I chose a small program I just downloaded, it is compiled with TASM, ...
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.