题解 | #牛牛学字母#
牛牛学字母
http://www.nowcoder.com/practice/c5f0c8a927084e258721b96ad616e070
get_str = input()
dict1 = {}
# 用字典的键来判断是否为重复字母并进行计数
for i in range(len(get_str)):
if get_str[i] not in dict1.keys():
dict1[get_str[i]] = 1
else:
dict1[get_str[i]] += 1
for j in dict1.keys():
print(f'{j} {dict1[j]}')
