三角形判断_python3

这个条件很容易忽略：ll[0] == ll [1] or ll[1] == ll[2]

while True:
    try:
        ll = list(map(int, input().split()))
        ll.sort()
        if ll[0] + ll [1] <= ll[2]:
            print('Not a triangle!')
        elif ll[0] == ll [1] or ll[1] == ll[2]:
            if ll[0] == ll[2]:
                print('Equilateral triangle!')
            else:
                print('Isosceles triangle!')
        else:
            print('Ordinary triangle!')
    except EOFError:
        break