Description: IP address subnet detection and classification, in the use, strictly in accordance with the IP address format input, otherwise an error
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File list (Check if you may need any files):
IP
..\Debug
..\function.cpp
..\function.dsp
..\function.dsw
..\function.ncb
..\function.opt
..\function.plg
..\IP地址检测.txt
..\stack.cpp
..\stack.h