"A Chang Yu" mainly describes the story between Lu Xun and nanny A Chang when he was a child. In Lu Xun's description, we can know that Chang is a kind and sincere person, and we also know Lu Xun's sympathy for the working people at the bottom.
This article expresses the author's nostalgia for childhood.
This essay was first published in Mangyuan, a semi-monthly magazine, and was later included in the collection of essays in Morning Flowers and Evening Picks.