Innovators are looking for ways to implement blockchains to transform business models in financial services,supply chain,government,healthcare,retail,and many other industries.Blockchain adds value to enterprises by providing the following services:
透明度
可追溯性
提高速度
降低成本
透明度
With the implementation of blockchain,transaction history has become more transparent.Because blockchain is a distributed ledger,all network members share the same updated ledger.Consensus in the network validates the ledger,which means that everyone must agree to it.
Changing a single record will cause all subsequent records to be modified.Therefore,保存在区块链上的数据是:
更安全
准确的
透明的
仅对具有访问权限的成员可用
可追溯性
2.1示例代码块
<div class="outer">
<div class="inner">hello</div>
<div class="inner">world</div>
<div class="inner">today</div>
</div>
2.2折叠动作
点击内部代码块,比如点击<div class="inner">hello</div>,让光标保持在这一行。快捷键option+command+[,就可以收缩成:
<div class="outer">
</div>
中间的三行div都被折叠起来。
tips:如果继续按option+command+[,还会往上一层折叠,<div class="outer">也会被折叠起来。