When did Mei Lanfang, Shang Xiaoyun, Cheng Yanqiu and Xun Huisheng cooperate in painting?

cooperation in p>1921. Xun Huisheng went to Shanghai to perform. Because he admired Wu Changshuo's painting and calligraphy art, he took his own painting and calligraphy album, and invited Wu Changshuo under the introduction of calligrapher Liu Shannong. Wu Changshuo liked Peking Opera, and attached great importance to it. He read the album with pleasure and gave guidance, which inspired Xun Huisheng a lot.