Block chain all digital currency is the underlying technology, digital currency block chain's earliest applications,

As the currency prices rising and chain block technology into the government and the public view, more and more people are interested in digital currency, there are more and more emerging digital currency emerge in endlessly, until today, has formed a complete industry chain of digital currency,

However, government legislation and regulation on digital currency also relatively lags behind, this is an attractive market, is also a good and evil people mixed up of the market, in this chapter, we come to the status quo of digital currency do a detailed introduction, involves the necessity of digital currency appeared, and the advantages of digital currency and risk, the current some of the more active digital currency and the government's attitude toward digital currency,