新增/修改元素：字典名[键名称] = 值 删除元素：del 字典名[键名称] * * * * * 【示例1】： ~~~ dic = {'小红':95, '小明':85} dic['小刚'] = 100 print(dic) del dic['小红'] print(dic) ~~~ 运行结果： ~~~ {'小红':95, '小明':85, '小刚':100} {'小明':85, '小刚':100} ~~~ * * * * *