拼命杀现有的这个8081杀不完，
文档说
Using a port other than 8081 #
You can configure the packager to use a port other than 8081 by using the
port parameter:
$ react-native start --port=8088
You will also need to update your applications to load the JavaScript bundle
from the new port. If running on device from Xcode, you can do this by
updating occurrences of 8081 to your chosen port in the node_modules/react-
native/React/React.xcodeproj/project.pbxproj file.
问题是如何启动
react-native run-ios ?
折腾死人了。
fuck react !!!
