March 2022
Intermediate to advanced
293 pages
5h 31m
Chinese
Content preview from 精通区块链
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192 ｜ 第 7 章
一逻辑被编入交易所的后端服务器。在
DEX
上，汇率被编入执行交易的智能
合约中，并且可以被审计。
了解客户
每一个中心化交易所都有一个注册程序，用户必须分享身份信息，如电子邮
件地址、电话号码或政府颁发的身份证。根据其管辖范围，交易所必须收
集一定数量的身份信息，然后才允许用户使用其服务。这是各国政府防止交
易所等金融机构为洗钱和恐怖主义融资提供便利的重要方式。然而，有了
DEX
，任何人都可以使用交易所而不需要分享任何身份信息。唯一共享的信
息是加密货币地址。
优点是任何拥有加密货币的人都可以使用
DEX
，而不需要请求许可。缺点是
DEX
只允许加密货币的交易，不支持美元或欧元等法币。这是因为所有的法
币都与传统的银行系统挂钩，而传统银行系统需要银行和金融机构等中央权
威机构授权。
可扩展性
中心化交易所可以在成熟的技术上运行其基础设施，可以轻松地执行每秒数
百万次的操作。因此，即使服务于数百万用户，它也能提供快速的交易体验。
由于
DEX
完全运行在公共区块链上，
DEX
的交易吞吐量受到区块链最大交
易速度的限制。截至
2020
年，
Ethereum
的最大交易速度不到每秒
20
笔。相
比之下，正如本书前面提到的，
Visa
的支付网络每秒可以处理高达
65000
笔
交易。
7.5
闪贷
大多数标准贷款都有一个评估谁有资格获得贷款和最高贷款额度的程序。有
些贷款可能会要求借款人提供抵押品来担保贷款。贷款人制定和遵循这些程
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.