找出字符串中，字符出现次数最多的字符

s = "sdfasdfwijo23u423ithjfiksdlngbdjf"
max_times = 0
result = {}
 
for i in s:
  if s.count(i) > max_times:			//count 统计该字符出现参数
    result.clear()			//字典清空
    result[i] = s.count(i)		
    max_times = s.count(i)
  elif s.count(i) == max_times:
    result[i] = s.count(i)
 
print(result)

运行结果：

{'d': 4, 'f': 4}