求这个代码。。。。.......

>>> def stat_string():
	while True:
		s = input('请输入：')
		if s:
			unique = list(set(s))
			cs = [s.count(ch) for ch in unique]
			n_max = max(cs)
			while cs.count(n_max) > 0:
				i = cs.index(n_max)
				ch_max = unique[i]
				print(ch_max, n_max)
				cs[i] -= 1
		else:
			break

		
>>> stat_string()
请输入：ddff345
f 2
d 2
请输入：ddff3344555
5 3
请输入：
>>> 

>>> def stat_string():
	while True:
		s = input('请输入：')
		if s:
			ch_max = max(set(s), key=s.count)
			print(ch_max, s.count(ch_max))
		else:
			break

		
>>> stat_string()
请输入：dffdgdfgssdsd324234
d 5
请输入：sdfgsdbxcbsdfg78237402
d 3
请输入：gfhfalkwerwe8888128
8 5
请输入：
>>>