1. It is suggested that Coinan and Coinan have enough answers and enough users, so the chance of cutting leeks is very low, and the handling fee alone is enough to keep Coinan standing for a long time, so it is more secure. Then the China currency. China currency is really friendly to retail investors, with many activities and low fees. Then there is the red envelope system and social system. Like the current DeFi week, red envelopes are robbed every day, and retail investors are very happy.

2. In fact, as a head exchange, each has its own advantages and corresponding target customers. Capital security is aimed at foreign customers, so foreign customers are basically capital security; Money, for bosses who do big business at home and abroad, also makes a lot of money through this; Okex, for people who play contracts, the first online contract, the most contract users; For retail investors, China currency has its own ecology, which is very suitable for retail investors, such as group chat and red envelopes. See which one you like and which one is suitable.

1. digital currency, DC for short, is the abbreviation of English "digital currency" and is another currency in the form of electronic money. Digital gold coins and cryptocurrency belong to digital currency. Digital currency is an unregulated digital currency, which is usually published and managed by developers and accepted and used by members of a specific virtual community. The European Banking Authority defines virtual currency as a digital expression of value. It is neither issued by the central bank or authorities nor linked to legal tender, but it can be transferred, stored or traded as a means of payment or electronic form because it is accepted by the public.

2. digital currency can be regarded as a virtual currency based on node network and digital encryption algorithm. The core characteristics of digital currency are mainly reflected in three aspects: ① Because of some open algorithms, there is no publisher in digital currency, so no one or organization can control its distribution; (2) Because the number of algorithm solutions is fixed and the total amount of digital currency is fixed, the possibility of inflation caused by virtual currency abuse is fundamentally eliminated; ③ Because the transaction process needs the approval of all nodes in the network, the transaction process in digital currency is safe enough.

3. The emergence of Bitcoin poses a great challenge to the existing monetary system. Although it belongs to virtual currency in a broad sense, it is essentially different from the virtual currency issued by network enterprises, so it is called digital currency. This paper compares digital currency with electronic currency and virtual currency in terms of issuer, scope of application, number of issues, storage form, circulation mode, credit guarantee, transaction cost and transaction security.