1.求下列数奇偶分数：
list1 = [1,2,3,4,5,6,7,8,9,10]
# 先创建两个空列表
jishu = []
oushu = []
# 使用for循环迭代list1一一取出进行判断
for i in list1:
# 取出的数除以2的余数等于0加入偶数列表，否则是奇数
if i % 2 == 0:
oushu.append(i)
else:
jishu.append(i)
# 打印新列表
print(jishu)
print(oushu)
2.求1-100的偶数和：
sum = 0
for i in range(0,101):
if i % 2 ==0:
sum += i
print(sum)
3.类和对象 ：
class Cat:
"""
定义一个猫类
"""
def __init__(self, name, age, color):
self.name = name
self.age = age
self.color = color
print("大家好，我叫{},我现在{}岁,我的毛色是{}".format(self.name, self.age, self.color))
def run(self):
print("我会跑步")
def sleep(self):
print("我会睡觉")
def say(self):
print("我会叫")
a_cat = Cat("小咪", 2, "黑色")
a_cat.run()
a_cat.sleep()
a_cat.say()
4.去重 ：
# 1.方法一
list1 = [3,3,3,4,5,3]
set1 = set(list1)
print(set1)
# 2.方法2
new_list = [i for i in set1]
print(new_list)
# 3.方法3
list1 = [3,3,3,4,5,3]
set1 = set(list1)
new_list = []
for i in set1:
new_list.append(i)
print(new_list)
5. if ，elif，else简单使用：
score = int(input("请输入分数："))
if score > 90:
print("A")
elif score > 80:
print("B")
elif score > 70:
print("C")
elif score > 60:
print("D")
else:
print("E")
6.算数运算：
class calculation():
"""
算术运算
"""
def __init__(self, A, B):
self.A = A
self.B = B
def sum(self):
"""
计算加法
"""
return self.A + self.B
def sub(self):
"""
计算减法
"""
return round((self.A - self.B),2)
def multi(self):
"""
计算乘法
"""
return self.A * self.B
def div(self):
"""
计算除法
"""
try:
return round((self.A / self.B),2)
except ZeroDivisionError:
return("0除错误,分母不能为0！")
c = calculation(10, 0)
print(c.sum())
print(c.sub())
print(c.multi())
print(c.div())