请利用查找算法实现:记录单词中出现最多的字母，并将其修改为其他字母（用python做）

例如apple中出现最多的是p，将其修改为c

方法一

import string
class Solution:
    def getMostWord(self,wordstr):
        #将字符串小写化
        wordstr = wordstr.lower()
        #string.ascii_lowercase表示字母串'abcdef··z'
        return max(string.ascii_lowercase, key=wordstr.count)

handler=Solution()
re=handler.getMostWord("HOW，。、；ldfosudfjnxchvJJJvdjjjjdlsllhh")
print(re)

方法二

def wanted(text):
    text=text.lower() #全部改为小写
    target_letter = '' 
    target_count = 0
    for i in range(len(text)):
        count = text.count(text[i])
        if not text[i].isalpha() or target_letter == text[i]:
            # 避免重复判断
             continue
        if count == target_count:
                # 比较字母表顺序
            orders = [text[i], target_letter]
            orders.sort()
            target_letter = orders[0]
        elif count > target_count:
            target_count = count
            target_letter = text[i]
    return [target_letter, target_count]

res = wanted('iiiIIIIoJJDL，。、SPPNNs')
print(res)