python-两种方法实现：从字符串中找出 出现次数最多的 字母和 对应出现的个数

-----------------------方法一：使用字典---------------------------

s='aabcdefaabbccdeffffffffffff'c={}for i in s:if i not in c.keys():c[i]=0if i in c.keys():c[i]=c[i]+1h=0for k in c.keys():if h<c[k]:h=c[k]o=kprint h,o

---------------------------------------------方法二：使用数组----------------------------------

A=[]s='aabcdcecfaaffffffffffffff'h=0for i in s:A.append(i)for i in range(len(A)):c[A[i]]=0for j in range(0,i+1):if A[j]==A[i]:c[A[i]]=c[A[i]]+1for k in c.keys():if h<c[k]:h=c[k]o=kprint h,o