用python语言解决字典问题

字典中存储了四种水果价格，输出价格最贵的水果
其价格名称: 芒果是12 ，苹果10，香蕉5

fruits = {'芒果':12,'苹果':10,'香蕉':5}
m = 0
name = ''
for k in fruits:
    if fruits[k] > m:
        name = k
        m = fruits[k]
print(name, fruits[name], sep=':')