<p>在三角形tri实现两个函数，功能是输入三个顶点坐标判断是否构成等边三角形。<img src="https://learnfile.20230611.cn/learnAppQuestion/7f/6d/7f6d3c474623692f75f747973c65352b.png" style="width: 100%;height: auto;"><img src="https://learnfile.20230611.cn/learnAppQuestion/82/ac/82ac39aa6186 - C+ + 程序设计(04737)