There are also drying method, semi-micro method and titration method to choose from. Judging from the relevant public information, the live broadcast of public welfare can make more viewers pay attention to the public welfare itself by using the influence of anchors and stars. The strong interactivity of the live broadcast allows the audience to give their love during the watching process, and they can participate in public welfare with their fingers, which brings more possibilities for "public welfare for all" and "fingertip public welfare".