python是一门解释型的、强类型的、动态语言
一：数字类型
1.1 整型int：记录人的年龄、等级、号码、个数
age = 18
print(type(age))
1.2 浮点数float：记录人的薪资、身高、体重
salary = 3.7
print(type(salary))
x = 18
y = 3.7
print(x + y)
print(x > y)
二：字符串:记录描述性质的状态，比如名字、一段话、性别
x = "两个黄鹂鸣翠柳"
y = '两个黄鹂鸣翠柳'
m = """两个黄鹂鸣翠柳"""
n = '''两个黄鹂鸣翠柳'''
print(x)
print(y)
print(m)
print(n)
msg = "my name is 'egon'"
print(msg,type(msg))
gender = 1
gender = 0
age # 变量名
"age" # 变量值的一种，str
了解：
print("abc"+"xxx")
print("abc"*3)
print(""50)
print('hello')
print(""50)
三 列表：按照位置存放多个值，比如记录一个人的爱好
hobbies = "打篮球 阅读 看电影"
0 1 2
hobbies = ["打篮球", "阅读", "看电影"]
print(hobbies[0])
print(hobbies[1])
print(hobbies[2])
print(hobbies[3])
print(hobbies[-1])
print(hobbies[-2])
# 0 1 2 3
l1 = [1111,1.3333,"aaa",['bbb','ccc']]
print(type(l1))
print(l1[3][0])
四：字典类型：在{}内，按照key:value的格式存放多个元素，其中value可以是任意类型，而key通常是str类型
info = ["egon", 18, 1.8, 80, "male"]
info = {
"name": "egon",
"age": 18,
"height": 1.8,
"weight": 80,
"gender": "male"
}
print(info["name"])
print(info["xxxx"])
info = ["egon",18,"male"]
dic = {"k1":11111,"k2":1.3,"k3":"xxx",'k4':[111,222,333],"k5":{"a":1,"b":2}}
print(dic['k4'][1])
print(dic['k5']["a"])
五 布尔：记录真假
print(type(True))
print(type(False))
x = True
y = True
#print(10 > 3)
dis = {"k1": 23, "k2": 24, "k4": [23, 22, 21]}
print(dis["k4"][1])