最准确的平码公式算法

简介：At this time, I heard the sound of trumpets coming from outside the city, and then there was a small cheer at the top of the city. Then, the Chinese Army officer Tong Dingfang ran down from the top of the city and reported with a joyful face: Your Highness, the Jianlu have withdrawn. At the same time, The yellow Luogai umbrella shook, as if something big had happened!