python技巧 计算字符串中字母出现的次数并取出最大

有一个字符串 “aaddfdfdercfghfyttefsfsfewretr123trefg5624sdfcgvfdgte6435234532”,现在需要取出里面出现次数最多的字符

第一种方法-装饰器

class get_max_count_string:    def __init__(self,func):        self.func=func        self.count={}    def __call__(self, args):        for s in args:            if s in self.count:                self.count[s] +=1            else:                self.count[s] =1        key,value = max(self.count.items(),key=lambda x:x[1])        return key,value

@get_max_count_stringdef filter_string(s):    return s

得到的结果是:

print(filter_string(‘aaddfdfdercfghfyttefsfsfewretr123trefg5624sdfcgvfdgte6435234532‘))
(‘2‘, 4)

第二种方法，使用python的collections.Counter

import collections

class get_max_count_string1:    def __init__(self,func):        self.func=func    def __call__(self, args):        s_count=collections.Counter(args)        return s_count.most_common(1)

@get_max_count_string1def filter_string1(s):    return s

得到的结果

print(filter_string1(‘aaddfdfdercfghfyttefsfsfewretr123trefg5624sdfcgvfdgte6435234532‘))
[(‘f‘, 10)]

原文地址：https://www.cnblogs.com/flashBoxer/p/10098566.html