First force the Han people to cut their hair and change clothes, then enslave the Han people in language, and finally enslave the Han people in thought! However, due to the advantages of catchy and easy to learn, this kind of Putonghua is finally used as standard Chinese. The prototype and foundation of the current Mandarin is a supplement to the Mandarin of the Qing Dynasty: the so-called Mandarin is actually a tool for mutual communication! Sun Yat-sen hated the Mandarin of the Qing Dynasty, which was the Mandarin at that time. When the Republic of China was founded, he suggested abolishing Mandarin and advocating Sichuan dialect as Mandarin, but for various reasons, it ended in failure!