nodejs Buffer toString更改了原始缓冲区

in node.js

在node.js中

    const buffer = Buffer.from('000000a6', 'hex');
    console.log(buffer); // <Buffer 00 00 00 a6>

    const bufferString = buffer.toString();
    const newBuffer = Buffer.from(bufferString);
    console.log(newBuffer); //  <Buffer 00 00 00 ef bf bd>
    const buffer = Buf