Under what circumstances did Zheng Banqiao write the poem "Ink Bamboo Painting"?
"Ink Bamboo Painting Inscription Poetry" was written by Zheng Banqiao in adversity. According to legend, when Zheng Banqiao was the governor of Yangzhou, he had to take tough measures to deal with some lawless people because of the local despots who ran amok. One day, he received a painting called " Ink Bamboo Painting." There was a poem inscribed on it, expressing the painter's praise for bamboo. However, the bamboos depicted in the poem were not real bamboos, but a fictional bamboo painting, and Zheng Banqiao knew this very well. Therefore, he expressed his helplessness and dissatisfaction in the poem, saying that he was not a true believer of the black bamboo but that he "used the black bamboo to vent his emotions." This poem reflected Zheng Banqiao's psychological state when he was in adversity. He had to face the dissatisfaction of his superiors, the struggle of the local outlaws, and the confusion and confusion in his heart. This also shows us a real historical figure whose image not only exists in works of art but also in our lives.