网络函数

htonl()--"Host to Network Long"
ntohl()--"Network to Host Long"
htons()--"Host to Network Short"
ntohs()--"Network to Host Short"

https://www.shuzhiduo.com/A/o75NLWLWzW/
https://blog.sina.com.cn/s/blog_a31ff26901013hp1.html
https://blog.csdn.net/qq_44177918/article/details/130533616