What is the stem of painting school?

Painting cakes should be the idiom "Painting cakes to satisfy hunger".

Painting cakes to satisfy hunger is an idiom evolved from fable.

This idiom originated from Jin's The History of the Three Kingdoms and Lu Yuchuan.

Lu Yu was a famous Wei Xiang in the Three Kingdoms period, and was once appreciated and reused by Emperor Wen in Wei Wendi. When I was a child, my family was poor, but I was smart and studied hard. Finally, he became a very talented person and became an official in Beijing. Before Lu Yu was promoted to the official department, he held the post of Zhongshulang. When he is transferred, the position will be vacant and someone needs to fill it. At that time, Wei Wendi asked Lu Yu to recommend suitable personnel and express his selection opinions. He said: "This clock selection is your first task after taking office. You should already know how to choose the right person. I think the most important quality in selecting talents is being able to do practical things. Many people are famous, but they can't do anything. This is a big problem. You are a senior official, so don't choose those who have only a hollow reputation and can't do practical things. Many times, people's fame is like a cake painted on the ground. You can look at it, but you can't fill your stomach. You should pay attention. "

The original text of this passage is: "Don't make a famous and colorful cake in the election."

After the story spread, people refined it into "painting cakes to satisfy hunger", which means painting cakes to satisfy hunger, but it was completely useless. Later, it was extended to be a metaphor for what is urgently needed to comfort yourself. It also means that there is no real interest in name only.

Now this idiom has evolved into an online hot word "painting cakes" in the online world, which means making an absurd promise, then persuading people with sweet words, serving them, and finally refusing to fulfill the promise or run away. Its core meaning is consistent with "painting cakes to satisfy hunger".