First of all, computer software is protected by copyright law and is not a patent issue. Let me clarify first.
Then if it is software that others have copyrighted (especially if they have applied for copyright registration), you can download it. Infringement of the information network dissemination and reproduction rights of the software
Making appropriate modifications based on other people's works infringes on others' right to modification
As for what was said above Haha, "Just like the desktop lyrics that Qian Qianjing listens to, many other software are similar to it, and the implementation methods must be different, but have they all paid Qian Qian? Not necessarily." This is inexplicable first of all. How can we conclude that the source codes of lyrics desktops that look similar are similar? Secondly, if it is really similar, then it must be an infringement of the copyright of the copyright owner (not necessarily Qianqian, I don’t know who was the earliest copyright owner who wrote the source code). my country’s copyright protection is not good for intellectual property protection, and the copyright owner has poor awareness or is troublesome. I don't want to go to court for infringement, but that doesn't mean it's non-infringement! ! !
It’s like there are many people who owe you money, but everyone only owes you five or ten yuan, but it will take a lot of time and effort for you to collect the debt. Think about it and forget about it. But these people The fact that you are owed money cannot be denied! This is the current status of intellectual property protection in our country