Which dynasty is the Spring Festival couplets? Who wrote them?

Occasional Spring Festival was written by Cheng Hao in Song Dynasty.

The full text is:

There were faint clouds in the sky, and the wind blew on my face. At this time, it was noon, and I walked through the flowers and along the green willows, and unconsciously came to the river.

At that time, people didn't understand my inner happiness at this moment, thinking that I was learning from young people and taking advantage of the good opportunity to steal.

Translated into modern Chinese is:

The clouds are light and the wind is light. It's almost noon in spring, beside the flowers and accompanied by willows, I walked to the river bank.

This pleasant spring outing, people don't understand, they will say that I am busy and want to learn from teenagers.

Cheng Hao (1032- 1085) was a philosopher, educator and founder of Neo-Confucianism in the Northern Song Dynasty. Bochun is called Mr. Ming Dow by scholars. Luoyang (now Henan) people. Shen Zongchao was appointed as a prince, and Gordon pai' ea chung-hoon supervised the army. Oppose Wang Anshi's New Deal. Cheng Hao's theory occupies an important position in the history of Neo-Confucianism, which was later inherited and developed by Zhu, and is called School of History. His own writings and books compiled by later generations collected his remarks and compiled them into the book "Two Cheng Quan Shu".