"""
集合：set
1、由不同元素组成，
2、无序
3、不可变：数字、字符串、元组
不可变类型
"""
s = {1, 2, 3, 4, 1, 6, 3, 4, 5, 6}
print(s)
t = {'hello', 'ssad', 'asd', 'asd', 'hello'}
print(t)
s1 = set('hello')
print(s1)
# s2 = set(['cui', 'hai', 'cheng', 'cui'])
# print('s2:', s2)
ss = {1, 2, 3, 4, 5, 6}
ss.add('3') # 添加元素,只能一个值
ss.add(32)
print(ss)
# ss.clear() # 清空集合
# print(ss)
s3 = ss.copy()
print(s3)
ss.pop() # 随机删除
print(ss)
# ss.remove('3') # 指定元素删除,不存在会报错
print(ss)
ss.discard('ewrewrewr') # 删除元素不存在，不会报错
print(ss)
python_l = ['cui', 'hai', 'cheng', 'pipi', 'anan']
linux_l = ['cui', 'pipi', 'cheng', 'kele', 'honr']
p_l = set(python_l)
l_l = set(linux_l)
print(p_l, l_l)
print(p_l.intersection(l_l)) # 求p_l中和l_l一样的元素
print(p_l & l_l) # 求p_l和l_l交集
print(p_l.union(l_l)) # 求p_l和l_l一共的元素
print(p_l | l_l) # 求p_l和l_l并集
print("差集：", p_l - l_l) # 求差集
print('chaji:', l_l - p_l)
print(p_l.difference(l_l))
print(p_l.symmetric_difference(l_l)) # 交叉补集
print(p_l ^ l_l)
s4 = {1, 2}
s5 = {3, 4}
print(s4.isdisjoint(s5)) # 没有交集的时候返回True
s6 = {1, 2, 3}
s7 = {1, 2}
print(s7.issubset(s6)) # s7是s6的子集
print(s6.issuperset(s7)) # s6是s7的父集
s7.update(s6) # 更新多个值
print(s7)
# 集合变为不可变的
s9 = frozenset('hello')
print(s9)
s8 = ['pipi', 'cui', 'pipi', 'cui', 'cheng']
names = list(set(s8))
print(names)
"""
字符串格式化
%s 字符串，万能接
%d 整形数字
%f 浮点数（保存六位） %.2f 保留两位
字典形式
"""
print('I am %s ,my hobby is %s' % ('cui', 'read book'))
print('I am is %d' % 20)
print('my percent is %.2f %%' % 98.44444)
print('I am %(name)s age %(age)d' % {'name': 'cui', 'age': 20})
"""
format 格式化
"""
tpl = "i am {}, age {}, {}".format("seven", 18, 'alex')
print(tpl)
tp2 = "i am {}, age {}, {}".format(*["seven", 18, 'alex'])
print(tp2)
tp3 = "i am {0}, age {1}, really {0}".format("seven", 18)
print(tp3)
tp4 = "i am {0}, age {1}, really {0}".format(*["seven", 18])
print(tp4)
tp5 = "i am {name}, age {age}, really {name}".format(name="seven", age=18)
print(tp5)
tp6 = "i am {name}, age {age}, really {name}".format(**{"name": "seven", "age": 18})
print(tp6)
tp7 = "i am {0[0]}, age {0[1]}, really {0[2]}".format([1, 2, 3], [11, 22, 33])
print(tp7)
tp8 = "i am {:s}, age {:d}, money {:f}".format("seven", 18, 88888.1)
print(tp8)
tp9 = "i am {:s}, age {:d}".format(*["seven", 18])
print(tp9)
tpl0 = "i am {name:s}, age {age:d}".format(name="seven", age=18)
print(tpl0)
tpl1 = "i am {name:s}, age {age:d}".format(**{"name": "seven", "age": 18})
print(tpl1)
tpl2 = "numbers: {:b},{:o},{:d},{:x},{:X}, {:%}".format(15, 15, 15, 15, 15, 15.87623, 2)
print(tpl2)
tpl3 = "numbers: {:b},{:o},{:d},{:x},{:X}, {:%}".format(15, 15, 15, 15, 15, 15.87623, 2)
print(tpl3)
tpl4 = "numbers: {0:b},{0:o},{0:d},{0:x},{0:X}, {0:%}".format(15)
print(tpl4)
tpl5 = "numbers: {num:b},{num:o},{num:d},{num:x},{num:X}, {num:%}".format(num=15)
print(tpl5)
