1、编写代码，完成向字典中加入键值对"化学"79
2、修改键值对"数学"的值，使其为"数学":100
3、使用德尔命令删除键值对:
"物理":43
4、追历输出最终的二进制课程的值
望采纳
dic = {"数学":80,"语文":95,"英语":65,"物理":43}
dic["化学"] =79
print(dic)
dic["数学"] = 100
print(dic)
dic.pop("物理")
print(dic)
for key, value in dic.items():
print(key,value)