请求加密

const md5 = require(‘md5’)

function EncryptionParam(req){
    const timestamp = new Date().getTime()
    const saltToken = "9d1b0dda2797412d8a1cf8bcadab0464"
    // md5加密
    const tokenStr = JSON.stringify(req) + saltToken + timestamp
    // 加密必须是 字符串
    const token = md5(tokenStr)
}