day04 交互、格式化输出、运算符

最新推荐文章于 2025-09-10 17:59:49 发布

weixin_30404405

最新推荐文章于 2025-09-10 17:59:49 发布

阅读量90

点赞数

CC 4.0 BY-SA版权

文章标签： python

原文链接：http://www.cnblogs.com/wsxiaoyao/p/10900115.html

该博客主要介绍Python基础内容，包括交互、格式化输出（占位符、format、f-String）、基本运算符（算术、比较等）、运算符优先级，还提及链式赋值、交叉赋值和解压缩等操作，给出代码示例及执行结果。

day04

交互

name = input("Please input you name: ")
print(name)

格式化输出

age = input("Please input you age: ")
print("My age is" + age)
print("My age is", age)

占位符格式化

name = input("Please input you name: ")
age = input("Please input you age: ")
height = input("Please input you height: ")
print("name is %s ,age is %s, height is %s"%(name,age,height))

format 格式化（了解）

name = input("Please input you name: ")
age = input("Please input you age: ")
height = input("Please input you height: ")

# print("name is {0} ,age is {1}, height is {2}" .format(name,age,height))
print("name is {name} ,age is {age}, height is {height}" .format(name=name,age=age,height=height))

f-String 格式化

name = input("Please input you name: ")
age = input("Please input you age: ")
height = input("Please input you height: ")
# print(f"name is {name} ,age is {age}, height is {height}")
print(f"name is {name} ,age is {int(age)+5}, height is {int(height)+5.5:.2f}")

基本运算符

算术运算符

+ - * /

比较运算符

>
<
>=
<=
==
!=

赋值运算符

=
x=1

逻辑运算符

and
or
not

身份运算符

is比较的是id（内存地址）

id相同值一定相同，值相同id不一定相同，除了小整数池除外

python运算符优先级

链式赋值（必考）

x,y,z=10,10,10

交叉赋值（必考）

x=10
y=10
x,y=y,x

解压缩

列表取值的常规方法

    name_list = ['demon', 'lucifer', 'xcracker']
    x = name_list[0]
    y = name_list[1]
    z = name_list[2]
    print(f'x:{x}, y:{y}, z:{z}')

执行结果

print(f'x:{x}, y:{y}, z:{z}')

解压缩方法

    name_list = ['demon', 'lucifer', 'xcracker']
    x, y, z = name_list
    print(f'x:{x}, y:{y}, z:{z}')