Python基本数据类型

Python基本数据类型

#数据类型：整形，浮点，字符串，布尔

#ython把0、空字符串''和None看成 False，其他数值和非空字符串都看成 True

print(45678+0x12fd2)

print(11.2+10.00)

print('learn Python in imooc')

print(0xff==255)

#字符串'.号'表空格

print('hello, python')

print('hello,','python')

#字符串，转义符号，r'''...'''

s ='Python was started in 1989 by \"Guido\".\nPython is free and easy to learn.'

print(s)

print (r'''"To be, or not to be": that is the question.

Whether it's nobler in the mind to suffer.''')

#字符串运算

s="bai"

s1="wuguang"

print(s[0:-1]);

print(s+s1);

#变量，范类型

x1=1

d=3

n=100

x100=x1+(n-1)*d

s=(x1+x100)*n/2

print(s)

#list

li=['新月打击','苍白之瀑','月神降临','月神冲刺'];

print(li[0:2])

print(li[-1])#打印出单个

print(li[-1:])#打印出列表

print(1 not in li)#判断是否是在列表中

print(len(li))#长度

#元组 tuple

print(type((1,'-1',True)))

#int 类型

print(type((1)))

#tuple类型

print(type((1,)))

#typle类型

print(type(()))

#集合

s1={1,2,3,4,5,6}

s2={1,2,3,4,5,7,8}

print(type(s1))

print(s1-s2)#除去

print(s1&s2)#共同

print(s1|s2)#相加

#字典

d={'Q':'新月打击','W':'苍白之瀑','E':'月之降临,'R':月神冲刺'}

print(type({}))#空的字典

print(d['Q'])#输出新月打击