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是B类还是C类,我以为是B类,因为第一位以1开头,第二位是0,对吗?
10001111000100011010000000000000
10001111000100011010000000000000 = 143.17.160.0,属于 B 类(128.0.0.0 到 191.255.255.255)。是的,你是对的,如果第一位是 1,第二位是 0,那么它就是 B 类。
10001111000100011010000000000000 = 143.17.160.0
更多参考,可以去http://en.wikipedia.org/wiki/Classful_network