python基础语法（1）-优快云博客

本文链接：https://blog.youkuaiyun.com/wl20161229/article/details/132154458

本文介绍了Python中的整型、浮点型、字符类型以及变量赋值、列表、元组和字典的基本操作，包括索引、切片和合并操作的示例。

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# 整型
counter = 1000

# 浮点型
miles = 10.0

# 字符换
name = "json"

print(counter)
print(miles)
print(name)

a = b = c = 1
print(a)
print(b)
print(c)

c, d, e = 5, 2, "json"
print(c)
print(d)
print(e)

s = "abcdef"
print(s[1:3]) #bc
print(s[0:])  #abcdef
print(s * 2)  #abcdefabcdef
print(s + "lizhuoni")  #abcdeflizhuoni

list1 = ["lizhuo", "abc", 4]
list2 = ["liuyaya", "33", 7]
print(list1) #['lizhuo', 'abc', 4]
print(list2) #['liuyaya', '33', 7]
print(list1[0]) #lizhuo
print(list1[0:2]) #['lizhuo', 'abc']
print((list1[2:])) #[4]
print(list1 + list2) #['lizhuo', 'abc', 4, 'liuyaya', '33', 7]
print(list1[0:]) #['lizhuo', 'abc', 4]

tuple = ( 'runoob', 786 , 2.23, 'john', 70.2 )
tinytuple = (123, 'john')

print(tuple)
print(tuple[0:1])
print(tuple[0:])
print(tuple * 2)
print(tinytuple + tinytuple)

#输出结果
('runoob', 786, 2.23, 'john', 70.2)
('runoob',)
('runoob', 786, 2.23, 'john', 70.2)
('runoob', 786, 2.23, 'john', 70.2, 'runoob', 786, 2.23, 'john', 70.2)
(123, 'john', 123, 'john')

dict = {}
dict[1] = "lizhuo"
dict["one"] = "111"
dicttiny = {"liuya": 999, "one" : 00, 0: "99999"}

print(dict)
print(dicttiny)
print(dict[1])
print(dict["one"])
print(dict.keys())
print(dict.values())

#输出对应的结果为
{1: 'lizhuo', 'one': '111'}
{'liuya': 999, 'one': 0, 0: '99999'}
lizhuo
111
dict_keys([1, 'one'])
dict_values(['lizhuo', '111'])