对校园网进行子网划分，内网的IP地址为一个B类地址172.16.0.0，其中，第一个子网包含1100台计算机，第二个

需要划分的IP网段为：172.16.0.0
需要划分的IP子网的子网掩码为：255.255.248.0
需要划分的主机个数是：1100个。
每段子网的网络号是TO前IP的最后一位减1
每段子网的广播地址是TO后IP最后一位加1
1）172.16.0.1 To 172.16.7.254
2）172.16.8.1 To 172.16.15.254
3）172.16.16.1 To 172.16.23.254
4）172.16.24.1 To 172.16.31.254
5）172.16.32.1 To 172.16.39.254
6）172.16.40.1 To 172.16.47.254
7）172.16.48.1 To 172.16.55.254
8）172.16.56.1 To 172.16.63.254
9）172.16.64.1 To 172.16.71.254
10）172.16.72.1 To 172.16.79.254
11）172.16.80.1 To 172.16.87.254
12）172.16.88.1 To 172.16.95.254
13）172.16.96.1 To 172.16.103.254
14）172.16.104.1 To 172.16.111.254
15）172.16.112.1 To 172.16.119.254
16）172.16.120.1 To 172.16.127.254
17）172.16.128.1 To 172.16.135.254
18）172.16.136.1 To 172.16.143.254
19）172.16.144.1 To 172.16.151.254
20）172.16.152.1 To 172.16.159.254
21）172.16.160.1 To 172.16.167.254
22）172.16.168.1 To 172.16.175.254
23）172.16.176.1 To 172.16.183.254
24）172.16.184.1 To 172.16.191.254
25）172.16.192.1 To 172.16.199.254
26）172.16.200.1 To 172.16.207.254
27）172.16.208.1 To 172.16.215.254
28）172.16.216.1 To 172.16.223.254
29）172.16.224.1 To 172.16.231.254
30）172.16.232.1 To 172.16.239.254
31）172.16.240.1 To 172.16.247.254
32）172.16.248.1 To 172.16.255.254

问题没说全，暂且按照最大网段计算机数为1100划分。