即将离开 HelloWorld
您即将离开 HelloWorld,请注意您的帐号和财产安全。
https://www.oschina.net/action/GoToLink?url=https://link.juejin.im?target=https://en.wikipedia.org/wiki/BSD_licenses#3-clause_license_.28.22BSD_License_2.0.22.2C_.22Revised_BSD_License.22.2C_.22New_BSD_License.22.2C_or_.22Modified_BSD_License.22.29