In addition to the fireworks effect, WeChat's pat function can also add dynamic expressions such as bombs, celebrations and firecrackers. If someone shoots you, there will be a full-screen animation effect, which is very shocking. Besides, patting has other meanings, for example, patting you to remind you when you do something wrong or say something wrong; I dozed off at work and patted you to cheer you up; Acknowledge what you have done or said, clap your hands to express your appreciation. Wechat is a free application launched by Tencent on 201110, which provides instant messaging service for intelligent terminals. It was created by the product team of Tencent Guangzhou R&D Center led by Zhang Xiaolong.