python，第一次写编程，解答

Question

Answer 1

a,b,c = input("请输入三角形的三条边：").split(",")
a = eval(a)
b = eval(b)
c = eval(c)
# 计算半周长
s = (a + b + c)/2
 
# 计算面积
area = (s*(s-a)*(s-b)*(s-c)) ** 0.5
print('s= %0.2f' %area)