Does this door open inward or outward? Is there any knowledge?

The gate must have opened inward. It's called opening the door to make money.

For large public places, especially closed places such as churches and auditoriums, doors should be opened outwards to facilitate fire escape.

Strictly speaking, the doors of ordinary residents in buildings in cities should also be opened outwards to prevent fire.

1, the whole building leads to the main entrance outside. "Zuo Zhuan's fourteen years of mourning for the public": "I am a disciple and attack his door." ?

In 22 years of the Republic of China, he interviewed his hometown of Sui County, Henan Province: "Now Sui County Administrative Office is Luoxue Academy in Qing Dynasty, but Yuan Shangshu can set his hometown. There are two stone workshops facing the street from east to west. On the left, Sima III is written, and on the right, Bao Gong Shangshu is written, both of which are fifty steps away from the gate. "

2. Big family.

Yi Zhou Shu Huang Men: You Zhu once explained: "Men are a big family." Tang Yuanzhen's Preface to Reuters Tuo Poetry: "Lushi is a door, a brother and a noble person."

3. Dialect.

Still popular. It has a broad market. "Looking for Wu Kao": "Among the above kinds of sugar, the number of pieces sold is the most important. Because it is used to make rice fruit, no matter in the city, the village, the poor and the rich, every family should make rice fruit during the New Year. "