概要 或freenode上的#ethereumjs 安装 npm install ethereumjs-tx 用法 const EthereumTx = require ( 'ethereumjs-tx' ) . Transaction const privateKey = Buffer . from ( 'e331b6d69882b4cb4ea581d88e0b604039a3de5967688d3dcffdd2270c0fd109' , 'hex' , ) const txPar