Da Vinci Plan --- Add a piece of meaningful code to your blog

Let's make a contribution to the public welfare. You just need to add a piece of code on your blog, place a public welfare advertisement, like the one in the right column of my blog. This is the Da Vinci Plan. The slogan of the Da Vinci Plan is --- make public welfare easier and make blogs more wonderful! The Da Vinci Plan is an Internet project initiated by Hada Network for all blogs, which encourages sharing and creates miracles. Public welfare needs our participation and help in spreading. The Da Vinci Plan will unite all blogs that are committed to enhancing social well-being, spread public welfare organizations, and promote public welfare activities. The registration process is very simple, it can be done in 3-5 seconds, permanently valid, and you can choose the advertisements you like. Then you can play public welfare advertisements and become a communicator of public welfare!