测试例子

#__author__=lx
#__date__=2011-11-02


def triangle( a, b, c ):
        if a + b > c and a + c > b and b + c > a :
                if a != b and a != c and b !=c :
                        print "Ordinary triangle"
                else :
                        if a == b and a == c:
                                print "Equilateral triangle"
                        else:
                                print "Isosceles triangle"
        else:
                print "Non-triangular"


if __name__ == "__main__":
        triangle( 3, 1, 2 )