5.16博客

怎么到了实验室工程数学老师还是老转

国一游走名不虚传

python学习：

import math

class Point():

def \__init_\_(self,x,y):

    self.x = x

    self.y = y

def \__lt_\_(self, other):

    l1 = math.sqrt(self.x\*\*2+self.y\*\*2)

    l2 = math.sqrt(other.x\*\*2+other.y\*\*2)

    return l1<l2

def \__le_\_(self, other):

    l1 = math.sqrt(self.x\*\*2+self.y\*\*2)

    l2 = math.sqrt(other.x\*\*2+other.y\*\*2)

    return l1<=l2

def \__gt_\_(self, other):

    l1 = math.sqrt(self.x\*\*2+self.y\*\*2)

    l2 = math.sqrt(other.x\*\*2+other.y\*\*2)

    return l1>l2

def \__ge_\_(self, other):

    l1 = math.sqrt(self.x\*\*2+self.y\*\*2)

    l2 = math.sqrt(other.x\*\*2+other.y\*\*2)

    return l1>=l2

def \__eq_\_(self, other):

    l1 = math.sqrt(self.x\*\*2+self.y\*\*2)

    l2 = math.sqrt(other.x\*\*2+other.y\*\*2)

    return l1==l2

def \__ne_\_(self, other):

    l1 = math.sqrt(self.x\*\*2+self.y\*\*2)

    l2 = math.sqrt(other.x\*\*2+other.y\*\*2)

    return l1!=l2

p1 = Point(1,2)

p2 = Point(3,4)

p=p1<p2

print(p)

p=p1<=p2

print(p)

p=p1>p2

print(p)

p=p1>=p2

print(p)

p=p1==p2

print(p)

p=p1!=p2

print(p)