Python Dictionary：优化数据存储和快速检索的利器

Python 笔记

一、Python Dictionary简介

employee = {'name': 'John', 'age': 31, 'city': 'New York'}
print(employee)

{'name': 'John', 'age': 31, 'city': 'New York'}

二、Python Dictionary常见操作

employee = {'name': 'John', 'age': 31, 'city': 'New York'}
employee['salary'] = 5000
print(employee)

{'name': 'John', 'age': 31, 'city': 'New York', 'salary': 5000}

employee = {'name': 'John', 'age': 31, 'city': 'New York'}
del employee['city']
print(employee)

{'name': 'John', 'age': 31}

employee = {'name': 'John', 'age': 31, 'city': 'New York'}
print(employee['name'])

John

三、Python Dictionary优缺点分析

四、总结