题解 | #字符串分隔#

let line
let arr = []
while (line = readline()) {
    console.log(getFixedLenStr(line,8))
}

function getFixedLenStr(str, num) {
  let len = ~~(str.length / num)
  let mode = str.length % num
  let newStr = '', modeStr = ''
  if (mode) {
    modeStr = str.slice(-mode)
  }
  let arr = str.split('')
  let resArr = []
  for (let i = 0; i < len; i++) {
    resArr.push(arr.splice(0,8).join(''))
  }
  for (let i = 0; i < num; i++) {
    if (!modeStr) {
      break
    }
    modeStr += '0'
  }

  resArr.push(modeStr.slice(0, num))
  return resArr.join('\n').trim()
}