Cough is a kind of system sound, such as someone adding a friend, or adding a message to a group, being removed from the group, and someone quitting the group. Knocking at the door is the voice of an online friend. Only when I am online will my online friends have a voice. None of my friends who got online before me knocked at the door. Tick-tock, tick-tock is someone sending a message.
QQ is an instant messaging software based on Internet. QQ has covered many mainstream platforms such as Microsoft Windows, macOS, Android, iOS, Windows Phone and Linux.
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Social software is developing rapidly. At the beginning of the birth of WeChat, many people even rejected it. They think it is no different from qq. Some functions of WeChat exist in qq, but some WeChat of qq don't, so some people started to use WeChat very late, and it was also because of their last job that they opened WeChat.
However, the status of qq in the eyes of a generation has always been irreplaceable. Some people say that people after 1980 are nostalgic and don't want to grow up. There is also a plot for qq. With the growth of a generation, it records the joys and sorrows and has become a part of life. Maybe this plot will still exist in ten or twenty years. This is a special feeling and a plot that people can't let go of.