Python小白学习之路之数据类型，运算符and输入输出

# Author xyy
# Time: 2022/1/10 
# Topic This section focuses on the basics of Python, including the use of variables and data types and operators

"""
var(变量) + logic（逻辑） ==> Python interpreter（解释器） ====>the function of software
"""

#Definition and use of variables

#we do not need to define the type
import keyword

a = 1
print(a)

"""
Basics of data types:
num: int、long(python3 cancel)、float、complex、bool

Advanced data types:
dict
tuple
str
list
"""

print(type(a))
a = (2,3) #tuple
print(type(a))
a = [2,3] #list
print(type(a))
a = 2j+1 #complex
print(type(a))
a = True #bool
print(type(a))
a = 1.3 #float
print(type(a))
a={2:3} #dict
print(type(a))
a=1235456424543278777877 #int   py3 no have long
print(type(a))


"""
keyword:（关键字）
['False', 'None', 'True', 'and', 'as', 'assert', 'async', 'await', 'break', 'class', 'continue', 
'def', 'del', 'elif', 'else', 'except', 'finally', 'for', 'from', 'global', 'if', 'import',
'in', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'try', 'while', 'with', 'yield']
"""
print(keyword.kwlist)

a = 3
b = 6
print(a+a,a*a,a**a,b/a,a%b,b-a,b//a)

#logic operators: and or not (与、或、非)

运行结果：

 

 

Python的基本数据类型为：

 int、long(python3 被取消)、float、complex、bool

复杂数据类型

dict、tuple、str、list

# Author xyy
# Time: 2022/1/10
# Topic: Input and Output

#Output
name = "lihua"
print("My name is",name)
print("My name is %s"%(name))

"""
practice：

"""
qq = 66666666
telephone = 1545424554
address = "白云岗96号"
print("======================")
print("name:",name)
print("QQ:",qq)
print("tele:",telephone)
print("地址：",address)
print("======================")


"""
format output
"""
print("name:{}\nqq:{}".format(" "+name,qq))

#input
a = input("Please input your name:")
print(a)
b = int(input("please input your age:"))
print(type(b))

运行结果：

 

 

 注意：type(),可以查看相关变量的类型

可以看出Output有这几种方法：

print("My name is",name)

print("My name is %s"%(name))

print("name:{}\nqq:{}".format(" "+name,qq))