, Internet public welfare: refers to civil society or enterprises through the online platform to launch public welfare activities with low thresholds, high transparency, strong interaction and other characteristics. The following are Internet public good. ['A company allocates special funds every year to carry out public welfare activities, solicits cataract patients on the official website and provides all medical expenses to patients who meet certain conditions.', 'Learned that Lao Zhang was involved in a car accident. His old classmates passed the class group. The circle of friends quickly raised more than 30,000 yuan in donations and transferred them to his home.', 'A loving service station publishes online donation accounts from all walks of life on its homepage before the start of school every year, and invites some donors to send donations to the mountain elementary school together.', 'A village committee initiated a One Gang One donation and fund-raising activity through the online platform to help college students from the poor families in the village solve the tuition problem.']