[python周末班]内容复盘 之注释&基本数据类型

注释的四种方式：
'''这是注释'''
"""这是注释"""
'这是注释'
"这是注释"

"""
基本数据类型

1. 整型int
2. 浮点型float
3. 字符串str
4. 列表list
5. 字典dict
6. 布尔值bool
7. 元组tuple
8. 集合set
   """

"整型int"
age = 18
print(type(age)) # 确认数据类型 <class 'int'>
"浮点型float"
weight = 175.5
print(type(weight)) # 确认数据类型 <class 'float'>
"字符串str"
AA = "学习是我进步"
bb = '前人栽树，后人乘凉'
print(type(AA)) # 确认数据类型 <class 'str'>
print(type(bb)) # 确认数据类型 <class 'str'>
"列表list"
name = ['kevin', 'lucy', 'beck', 'jason']
print(type(name)) # 确认数据类型 <class 'list'>
print(name[2]) # 查找beck
"字典dict"
name_list = {'name': 'Kevin', 'age': '18', 'weight': '180', 'hobby': 'reading'}
print(type(name_list)) # <class 'dict'>
print(name_list['name']) # 查找kevin
Auto = ['kevin', 'lucy', 'beck', 'jason', {'name': 'Kevin', 'age': '18', 'weight': '180', 'hobby': 'reading'}, 'duck']
print(Auto[4]['name']) # 查到第四个数据的Kevin
"布尔值bool"
is_right = True
is_delete = False
"元组tuple"
s = ('kevin', 'lucy', 'beck', 'jason')
print(s[1]) # 查找lucy
print(s[0]) # 查找Kevin
print(type(s)) # <class 'tuple'>
"集合set"
T1 = {1, 2, 3, 5, 6, 7}
T2 = {1, 2, 3, 4, 5, 7}
print(T1 & T2) # {1, 2, 3, 5, 7} 交集
print(T1 | T2) # {1, 2, 3, 4, 5, 6, 7} 并集
print(T1 - T2) # {6} 差集
print(T1 ^ T2) # {4, 6} 补集
x = {1, 2, 3}
y = {2, 3}
z = {1, 2, 4}
print(x >= y) # y是否为x的子集
print(x <= z) # x是否为z的子集