Explicit Type Conversion

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 ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall "The guidance" only clear keyword classification, only then may according to the website goal to filter, the layout and the key optimization key words. Keyword classification there are many forms, each form can guide the site SEO strategy and direction of planning. The classification of keywords used by different websites will be different. In the specific site mining keywords, often also according to part of the word, description of the theme type, search for subdivision purposes, value, ROI, and many other specific methods to classify the keywords to direct ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall [the core hint] when the shopping guide this matter is more and more external factor parcel, is doomed in the future, the shopping guide is the comprehensive analysis user and multi-dimensional dynamic combination, closer to the user, provides the personalized service. 　　Beautiful said after the Mushroom street, the electric business ecosystem of shopping for new opportunities are emerging, in the field of shopping guide will be bound to add some personalized forces. 2011, the most lively web site, not beautiful said, Mushroom Street mo. These two companies have brought Taobao over billion sales ...

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the. 　　Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...

The Internet is an industry that makes popular concepts, and Data Products is no exception. In fact, the "real" data products have long since come out, only "name" is slowly becoming popular after a few years. I have seen a lot of articles on data products. We do not have a unified understanding of the concept of understanding there are different places, so I want to simply express my point of view, the main content is not seen in other online text of a talk. First, what is the data products To talk about data products, the first unavoidable "cookie cutter problem" is the definition of data products. My understanding is: ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall The first chapter, the basic knowledge one, the Domestic Advertisement Alliance entry point and the detail: 1, first you must have a website, because many federations are to audit the website first, next is your website type to decide whether you can successfully apply to the advertisement. Most good alliances require that they must be their own site, and some will require you to add code to the site for verification, and the ad must be placed on the website where you apply for the ad, which is not valid for other stations. However, some alliance or advertisers do not require, you can put the advertising code ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall in the article Tao Tao return network and you discuss the site of the three types of keywords (on), And you share the navigation key words, mainly emphasizing the construction of the brand and how to obtain the flow of such keywords, and then on the content of the article, continue to share the transaction and the type of keywords and information. These two types of keywords are different and navigation ...

The REST service can help developers to provide services to end users with a simple and unified interface. However, in the application scenario of data analysis, some mature data analysis tools (such as Tableau, Excel, etc.) require the user to provide an ODBC data source, in which case the REST service does not meet the user's need for data usage. This article provides a detailed overview of how to develop a custom ODBC driver based on the existing rest service from an implementation perspective. The article focuses on the introduction of ODBC ...

Translation: Esri Lucas The first paper on the Spark framework published by Matei, from the University of California, AMP Lab, is limited to my English proficiency, so there must be a lot of mistakes in translation, please find the wrong direct contact with me, thanks. (in parentheses, the italic part is my own interpretation) Summary: MapReduce and its various variants, conducted on a commercial cluster on a large scale ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnosis Taobao guest Cloud host technology Hall selection site generally use the Network Alliance 123 tools, you can view the Alliance website details, Website traffic data and advertising size, etc., can be seen. Baidu is said to have 60多万家 Alliance website, but the net union 123 inside can see only 30,000, should be selected tens of thousands of relatively stable, high prestige, flow ...