问问可爱吧友，这道Python题怎么做，感激不尽

简单点用字典记录后排序输出

a=input()
b={}
for i in a:
if b.get(i):
b[i]+=1
else:
b[i]=1
c=sorted(b.items(),key=lambda x:x[1],reverse=True)

arr = []
for i in set(list(str)):
arr.append((i, str.count(i)))
sort_arr = (sorted(arr, key = lambda x:x[1], reverse = True))
for t in sort_arr:
word, count = t[0], t[1]

string = input('Enter string :')
while string != '#':
s=list(string)
s.sort()
s.reverse()
temp=[]
for t in s:
if t not in temp:
temp.append(t)
for word in temp:
count = s.count(word)
print('{0:<10}{1:>5}'.format(word,count))
string = input('Enter string :')

谢谢各位