The first thing is that the cultivation of the prince has undergone major changes.

Before Qianlong, prince education was quality education, and Qianlong changed this education mode.

In the early Qing dynasty, the emperor attached great importance to the cultivation of the prince, especially in improving his ability. The best training effect is Kangxi. No matter how busy Kangxi is, he will take time to check the learning situation of the princes and urge them to learn culture well. Take adult governors to war, take part in political activities, give them specific tasks to complete and exercise their practical ability. When the prince came of age, he started the government alone. Most of the emperors trained in this way are excellent, and the emperors selected from them are also very capable.

During the Qianlong period, Qianlong concentrated the governors and trained them. They were no longer allowed to participate in politics, nor were they given the opportunity to exercise. When they became adults, they were not allowed to open a government alone, nor were they allowed to hold any administrative positions. Princes have neither learning goals nor practical training, and of course they have lost their political ability.

The captive mode of Qianlong effectively avoided the emergence of "nine sons seized the office" in Kangxi dynasty, but it led to the decline of the emperor's quality after Qianlong.

Second, the system of succession to the throne has undergone major changes.

During the period of Nurhachi and Huang Taiji, the succession to the throne was carried out by nobles, and the testamentary edict system was adopted in Shunzhi, the eldest son inheritance system was adopted in Kangxi first, and the testamentary edict system was adopted after failure.

After Yongzheng succeeded to the throne, he drew lessons from Kangxi and formulated the secret storage system. Yongzheng was the first emperor to adopt a secret storage system. He founded Li Hong, the Emperor Qianlong.

Yongzheng let Qianlong actually have Kangxi's opinion in it. Kangxi visited Qin Yong Wang Mi and found the clever Li Hong. He likes it very much. When I was born, I asked to see Li Hong, met Li Hong's biological mother, and brought them into the palace to raise them, which was really the intention of cultivating successors.

Secret storage, in order to keep secret, the old emperor can hardly discuss with anyone, only the emperor has the final say. Everyone has limitations in thinking, and the emperor is no exception. Compared with the result of democracy, the result of secret deposit is obviously inferior. For example, if Daoguang was elected by the nobility, it is likely that Prince Gong Yixin occupied the upper position. When Yixin became emperor, the history of the Qing Dynasty may be rewritten. As a result, Daoguang chose Xianfeng.

The third thing is the establishment and implementation of the negotiation bank system.

Emperor Qianlong spent a lot of money. He went to Jiangnan six times in his life and spent all the money in the national treasury. Ganlong likes to collect. Collection is a very expensive thing, and lack of money is natural. In order to satisfy his desire, he likes little Shenyang, which can catch money.

As we all know, Xiao Shenyang was a corrupt official, the biggest corrupt official in the Qing Dynasty. His corruption had a great influence on the Qing Dynasty, but it was neither the worst nor the biggest. The most influential thing is that he proposed the negotiation bank system. More importantly, Qianlong is very optimistic about the draft number system proposed by Xiao Shenyang. After the implementation of the negotiation bank system in the whole country, glistening money went into Ganlong's pocket, and Ganlong was simply overjoyed.

In the negotiation bank system, money can be used to buy guilt, either afterwards or in advance. Rich people commit crimes, spending money is no problem, and those who have no money have to plead guilty, which intensifies social injustice. Rich people first spend money to buy sin, buy sin, get rid of worries and start unscrupulous crimes. Officialdom corruption spread throughout the country, and it became a common phenomenon in the late Qianlong period. In the Qing dynasty, the magistrate spent three years, and 100 thousand snowflakes were silver, which shows the seriousness of official corruption at that time. Officialdom corruption is the premise of social decline. Social contradictions gradually intensified and peasant uprisings began to appear.

The emperor's quality is getting worse and worse, he has no ability to set things right, and social contradictions are accumulating and becoming more and more serious. This dynasty can only decline all the way.

Interaction and mutual benefit!