What are Wang Changling's poetic achievements?

Wang Changling (? -about 756), a poet in the Tang Dynasty. Shao Bo was born in Zhao Jing Chang 'an (now Xi, Shaanxi). The poems between Kaiyuan and Tianbao are very famous, and they are known as "Wang Jiangning, the sage of poetry". He was particularly good at the Seven Musts, and wrote more about the life of the frontier army at that time, with strong momentum and high style. There are seven songs "Join the Army" and "Out of the Fortress", which are famous songs in the two capitals. It is well known that his palace poems are good at writing women's sufferings. The original set has been lost. Later generations compiled The Collection of Wang Changling.