Which font was Song Ke, a calligrapher at the end of Yuan Dynasty, best at?

Song Ke is good at Cao Zhang, small letters and cursive script, especially Cao Zhang. His brushwork is based on the portrait of the French emperor, urgent chapter, and he devoted a lot of energy to this post. He wrote all his life until he was 60 years old. His brushwork was strong and his style was simple. It was his masterpiece with both the form and the spirit of ancient law. Since Zhao Meng began to learn from others in Yuan Dynasty, the study of this style has become a common practice, and there are many outstanding figures in it, but Song Ke's achievement is undoubtedly the highest. In fact, he was not only the late Yuan Dynasty and the early Ming Dynasty, but also one of the most outstanding figures in the whole history of Cao Zhang.