set集合

‘‘‘ 把W合并到S里面，去除相同的元素，并更新S。 ‘‘‘
w = {11,22,33,44}
s = {33,44,55,66}
s.update(w)
print(s)

‘‘‘ 合并两个列表，去除相同的元素，并赋值給一个变量。 ‘‘‘
w = {11,22,33,44}
s = {33,44,55,66}
e = s.union(w)
print(e)

‘‘‘ 移除s里面和w里面相同的元素，并把不同元素更新到s里面。 ‘‘‘
w = {11,22,33,44}
s = {33,44,55,66}
s.symmetric_difference_update(w)
print(s)

‘‘‘ 对称差集，移除两个列表中相同元素，并赋值給一个变量。 ‘‘‘
w = {11,22,33,44}
s = {33,44,55,66}
e = s.symmetric_difference(w)
print(e)

‘‘‘ 直接移除列表中某个元素，不存在，则报错。 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
s.remove(33)
print(s)

‘‘‘ 移除列表元素，并赋值給一个变量 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
print(s)
e = s.pop()
print(e)


‘‘‘ 判断s是否是W的父序列，也就是s是不是W的父亲 ‘‘‘
w = {33,66}
s = {12,33,55,66}
e = s.issuperset(w)
print(e)

‘‘‘ 判断s是否是w的子序列，也就是s是不是w的儿子。 ‘‘‘
w = {11,33,66}
s = {33,66}
e = s.issubset(w)
print(e)

‘‘‘ 判断两个set里是否有相同的，没有就返回True,有就返回False ‘‘‘
w = {11,44}
s = {12,33,55,66}
e = s.isdisjoint(w)
print(e)

‘‘‘ 从当前集合直接删除与其不一样的值 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
s.intersection_update(w)
print(s)

‘‘‘ 把S里和W里不一样的去掉，重新赋值給e变量 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
e = s.intersection(w)
print(e)



‘‘‘把S里和W一样的去掉，重新赋值給e变量‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
e = s.difference(w)
print(e)

‘‘‘ 从当前集合中直接删除与其一样的值 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
s.difference_update(w)
print(s)

‘‘‘添加元素‘‘‘
s = {12,33,55,66}
s.add(‘ee‘)
print(s)

s = {12,33,55,66}
s.clear()
print(s)

s = {12,33,55,66}
e = s.copy()
print(e)

‘‘‘ 移除指定元素不存在报错 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
s.discard(123)
print(s)

‘‘‘ 把W合并到S里面，去除相同的元素，并更新S。 ‘‘‘
w = {11,22,33,44}
s = {33,44,55,66}
s.update(w)
print(s)

‘‘‘ 合并两个列表，去除相同的元素，并赋值給一个变量。 ‘‘‘
w = {11,22,33,44}
s = {33,44,55,66}
e = s.union(w)
print(e)

‘‘‘ 移除s里面和w里面相同的元素，并把不同元素更新到s里面。 ‘‘‘
w = {11,22,33,44}
s = {33,44,55,66}
s.symmetric_difference_update(w)
print(s)

‘‘‘ 对称差集，移除两个列表中相同元素，并赋值給一个变量。 ‘‘‘
w = {11,22,33,44}
s = {33,44,55,66}
e = s.symmetric_difference(w)
print(e)

‘‘‘ 直接移除列表中某个元素，不存在，则报错。 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
s.remove(33)
print(s)

‘‘‘ 移除列表元素，并赋值給一个变量 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
print(s)
e = s.pop()
print(e)


‘‘‘ 判断s是否是W的父序列，也就是s是不是W的父亲 ‘‘‘
w = {33,66}
s = {12,33,55,66}
e = s.issuperset(w)
print(e)

‘‘‘ 判断s是否是w的子序列，也就是s是不是w的儿子。 ‘‘‘
w = {11,33,66}
s = {33,66}
e = s.issubset(w)
print(e)

‘‘‘ 判断两个set里是否有相同的，没有就返回True,有就返回False ‘‘‘
w = {11,44}
s = {12,33,55,66}
e = s.isdisjoint(w)
print(e)

‘‘‘ 从当前集合直接删除与其不一样的值 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
s.intersection_update(w)
print(s)

‘‘‘ 把S里和W里不一样的去掉，重新赋值給e变量 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
e = s.intersection(w)
print(e)



‘‘‘把S里和W一样的去掉，重新赋值給e变量‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
e = s.difference(w)
print(e)

‘‘‘ 从当前集合中直接删除与其一样的值 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
s.difference_update(w)
print(s)

‘‘‘添加元素‘‘‘
s = {12,33,55,66}
s.add(‘ee‘)
print(s)

s = {12,33,55,66}
s.clear()
print(s)

s = {12,33,55,66}
e = s.copy()
print(e)

‘‘‘ 移除指定元素不存在报错 ‘‘‘
w = {11,44,33,67,66}
s = {12,33,55,66}
s.discard(123)
print(s)