1.ip地址转long
def ip2Long(ip: String): Long = {
val fragments: Array[String] = ip.split("[.]")
var ipNum = 0L
for (i <- 0 until fragments.length) {
println(fragments(i))
ipNum = fragments(i).toLong | (ipNum << 8L) // 1.|起到的作用实际为加 2.<<8l为乘以256 3. 第一个ipnum为125 第二个ipnum为0，而不是125|125<<8L
println(ipNum)
}
println(ipNum)
ipNum
125
125
213
32213
100
8246628
123
2111136891
2111136891
117
117
101
30053
215
7693783
133
1969608581
1969608581