<![CDATA[<font draggable="nja"></font><u date-time="6e5"></u><bdo dropzone="cem"></bdo><em date-time="9gh"></em><abbr id="dxh"></abbr><pre lang="zvl"></pre><acronym date-time="_ea"></acronym><area draggable="fi_"></area><style draggable="rxx"></style><em draggable="iit"></em><area lang="fs6"></area><noframes date-time="ka6">]]>
区块链的主要作用包括以下几个方面：### 1. 数据
