【GitHub 当中默认能够直接选择的是哪些协议呢？】Apache License 2.0GNU General Public License v3.0MIT LicenseBSD 2-Clause "Simplified" LicenseBSD 3-Clause "New" or "Revised" LicenseBoost Software License 1.0Creative Commons Zero v1.0 UniversalEclipse Public License 2.0GNU Affero General Public License v3.0GNU General Public License v2.0GNU Lesser General Public License v2.1Mozilla Public License 2.0The Unlicense如果使用其他协议，只要自己建立一个 License.txt 声明即可。