const crypto = require('crypto')

const sha1 = crypto.createHash('sha1')
const salt = new Buffer('af350c3413179ab4', 'hex')
const origin = new Buffer('a123456')
sha1.update(salt)
sha1.update(origin)
let result = sha1.digest()

for (let i = 1; i < 1024; i++) {
result = crypto.createHash('sha1').update(result).digest()
}

console.log(result.toString('hex')) // 79893503e8074330321974fa14dc44f8aa1b3df0

你们用 applet 做什么在

@struCoder 第一次回复竟然是因为这个

没人说 tcpflow ，绝对超级好用。 http://huaoguo.com/work/2015/08/28/%E4%BD%BF%E7%94%A8tcpflow%E6%8A%93%E5%8F%96http.html