04.python语法入门--基本数据类型

# python是一门解释型的、强类型的、动态语言
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# 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))
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# 1.2 浮点数float：记录人的薪资、身高、体重
# salary = 3.7
# print(type(salary))
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# x = 18
# y = 3.7
# print(x + y)
# print(x > y)
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# 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)
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# msg = "my name is 'egon'"
# print(msg,type(msg))
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# gender = 1
# gender = 0
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# age  # 变量名
# "age"  # 变量值的一种，str
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# 了解：
# print("abc"+"xxx")
# print("abc"*3)
# print("*"*50)
# print('hello')
# print("*"*50)
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# 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"
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#            0        1        2
# hobbies = ["打篮球", "阅读", "看电影"]
# print(hobbies[0])
# print(hobbies[1])
# print(hobbies[2])
# print(hobbies[3])
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# print(hobbies[-1])
# print(hobbies[-2])
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# #      0      1     2         3
# l1 = [1111,1.3333,"aaa",['bbb','ccc']]
# # print(type(l1))
#
# print(l1[3][0])
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# 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"])
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# info = ["egon",18,"male"]
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# dic = {"k1":11111,"k2":1.3,"k3":"xxx",'k4':[111,222,333],"k5":{"a":1,"b":2}}
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# print(dic['k4'][1])
# print(dic['k5']["a"])
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# 五 布尔：记录真假
# print(type(True))
# print(type(False))
# x = True
# y = True
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print(10 > 3)