Lu Xun used a variety of artistic techniques to portray the characters 'personalities. 1. Description of details: Lu Xun was good at showing the character's personality and psychology through detailed descriptions, such as the character's posture, movements, language, clothing, etc. These detailed descriptions not only made the characters more vivid but also easier for the readers to understand. 2. Psychological description: Lu Xun's psychological description not only reveals the inner contradictions and thoughts of the characters, but also shows the personality characteristics of the characters. For example, in Diary of a Madman, Lu Xun portrayed the protagonist's personality through his madness. 3. Comparisons: Lu Xun often used contrast techniques to highlight the character's personality characteristics by comparing the character with other people or things. For example, in The True Story of Ah Q, Lu Xun used Ah Q's comparison with other characters to show his character flaws. 4. Symbolism: Lu Xun's symbolism is often used to describe the character and psychology of the character. For example, in Kong Yiji, Lu Xun used the word " drunkard " to symbolize Kong Yiji's character. Lu Xun used a variety of artistic techniques to portray the characters 'personalities, making the characters more vivid, vivid, and easier for readers to understand.