Observer Pattern C

I believe many people have been puzzled by C # delegates and events, especially in C # beginners, it will feel more difficult to learn this part, very likely to give up, and. 　　NET for delegates and events encapsulation is very good, generally not how to use custom delegates and events, so give up learning the technology has an excuse! There are a number of such articles on the web, most representative of Zhang Ziyang's C # delegates and events this article, the writing is very good, received a lot of readers praise, but I read the comments, or found some problems, because there are many readers are read over and over, each feeling is quite ...

Http://www.aliyun.com/zixun/aggregation/13713.html ">hbase coprocessor is one of the great expectations that many people have for hbase-0.92. It enables off-line analysis and online applications to be well integrated, and also greatly expands the application richness of hbase and is no longer a simple K class application. The design of HBase coprocessor from hbase-2000 and HBase-...

"Electric business in the winter," a surge of electricity traders in the East dead water, capital Amoy hero. 　　is the success or failure of the empty, electric business is still in, several times sunset red. Advertisement Express Jiang Zhu, accustomed to see the sale of goods. 　　In future, if the business encounters, the electrical business heritage, all pay a joke. 　　"Bleeding" electricity Shangwen/This newspaper reporter Lu Xucheng periodically "bleeds", this is the entrepreneur difficult to escape the destiny. 　　4 Years a reincarnation, since 2008, another round of "bleeding" began, 4 years ago is a video site, this time to the electricity business. "Some businesses are going to fall, including being and ...

The electricity merchant dies the water in the east, the capital is scouring the hero. 　　is the success or failure of the empty, electric business is still in, several times sunset red. Advertisement Express Jiang Zhu, accustomed to see the sale of goods. 　　In future, if the business encounters, the electrical business heritage, all pay a joke. 　　Periodically "bleed", this is the inevitable fate of entrepreneurs. "There are always companies that are going to fall, including the possibility of mergers and acquisitions," he said. I know the valuations of many companies, to tell the truth, to reduce the 20%-30% is not bad, some companies lost 50%. "In the interview with the" entrepreneur ", the former vice president of Jingdong Mall, the current hundred Li Group's corporate website ...

After a large number of online education start-ups in 2013, the boom lasted 2014 years, and many even predicted that online education would usher in an investment boom this year. 　　But is it really that optimistic? With a number of investors and practitioners to communicate, the author found that online education 2014 years of entrepreneurial environment will still be the tide, a large number of entrepreneurial projects will remain in the angel wheel and a round, and the pay for it is mainly the traditional educational institutions. And bat, is hiding in the further B round C round waiting for the harvest, such as Ali recently jointly invested 100 million dollars to ...

How long have you been in the current order? It used to be a lot of people for many years of reading platform, but now, too many people have slowly forgotten it. As the representative company of China's first E-commerce website, when this can win Jing Dong, suning easy to buy, but because Miss Golden ten years of development opportunities, when there is no way and Jingdong launched a positive tug of war, in 2010 after the listing, when another miss----blind price wars, expansion of disorder. 　　The person said to the Tiger sniffing network, when it has been slowly marginalized. The following is the 2010 ...

Alibaba and Hunan satellite TV 400 million dollar joint acquisition of pplive rumors of the two days just shut down the video industry again pushed to the forefront. 　　Just a few months ago, Baidu (134.92,-3.59,-2.59%) Archie to 370 million U.S. dollars to acquire PPS video business for the video industry accelerated shuffle to bury a new foreshadowing. BO, an independent observer of the Internet, said: "Integration is bound to happen, the future video industry players only three or four, and the four major portals coexist in a similar pattern." 　　"Is the pattern of the video industry set?" Mobile Video Reverse attack ...

Electric quotient of the seven-male hegemony (TechWeb map) Our correspondent June Beijing report 2012, the business market is a paradox cloud lumpy: Ali department will be the focus of the network shopping to the cat, Tencent quietly embarked on QQ online shopping and network integration, Dangdang alliances exerting platform, Wal-Mart holding No. 1th store, Suning, Gome to change body electric trader dead Knock Jingdong Mall, all these, show that the company is already the core of China's online retail business competition. A common saying is that the current Chinese manufacturers of the first camp, has been "seven-male hegemony" pattern: the cat, Jingdong Mall, Dangdang ...

This reporter Lu Jing Beijing report not the slightest new ideas, electric business enterprises to crack the way the operation is still cut meat. Recently, the Cat Electrical Mall sold 200 million yuan to subsidize businesses to carry out price promotion. The activity time will continue from May to August. 　　Because there is news that Jingdong Mall will be listed in the U.S. in the second half of this year, the industry analysis of the cat is intended to disrupt the mall listing process. Jingdong Mall said later, in May or June, will be 500 million yuan on home appliance products to promote, to pull big home appliances sales. In addition, Suning Tesco also responded: will be in 5 ...

Born in 1985, Zhang Xuhao in a suit and tie, still can't cover the belly that has been obviously overweight. January 28, he specially ran to Beijing, in the distance from the headquarters of the United States Network 798, announced that the success of the financing of 350 million U.S. dollars, "we within six months, the valuation of a ' milestone ' type of upheaval." "he said. In the face of surprise, he added: "Our goal is to have hundreds of billions of dollars worth of companies." "In the second half of 2014, the O2O field is heavily financed. Quick taxi, drop a taxi, American Regiment, Hungry Mody ... To finance their preparations. O2O field also from ...