不限
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Apache License 2.0
GNU General Public License v3.0
MIT License
BSD 2-Clause "Simplified" License
BSD 3-Clause "New" or "Revised" License
Boost Software License 1.0
Creative Commons Zero v1.0 Universal
Eclipse Public License 2.0
GNU Affero General Public License v3.0
GNU General Public License v2.0
GNU Lesser General Public License v2.1
Mozilla Public License 2.0
The Unlicense