python练习题-day6

dic={}
for i in lst:
    dic.update({i[0]:[]})
    for j in lst:
        if j.startswith(i[0]):
            dic[i[0]].append(j)
print(dic)

zhubo={'卢本伟':10000,'冯提莫':10000,'金老板':11111,"吴老板":12222,'alex':1}

li=[]
sum=0
lst=[]
for i in zhubo.values():
    li.append(i)
    sum+=i
avg=sum/len(li)
print(sum/len(li))
for k,v in zhubo.items():
    if int(v)<avg:
        lst.append(k)
for e1 in lst:
    zhubo.pop(e1)
print(zhubo)
del zhubo["卢本伟"]
print(zhubo)