本文转自：https://blog.csdn.net/ygznx/article/details/78249118
ust specify the IP in --host option like ng serve --host 192.16.1.1
Now you can visit http://192.16.1.1:4200 in your browser and it will work
下面是一个例子：
ng serve --host 192.168.1.102 --port 4201
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[转]如何将Angular localhost:4200 改为IP
原文：https://www.cnblogs.com/freeliver54/p/9660569.html