用Python统计字符串中各字符的个数

#方式一：
def count_str(s):

    adict = {}
    for x in str:
        if x not in adict:
            adict[x] = 1
        else:
            adict[x] += 1
    return adict

#方式二：
# def count_str02(s):
#     adict = {}
#     for i in str:
#         adict[i] = str.count(i)
#     return adict

str = "3332222333444444aaabbbbcccdde9999999999999999999999999999”

print(count_str(str))

# print(count_str02(str))

-------------------------------------------------------------------------

控制台输出：
{'3': 6, '2': 4, '4': 6, 'a': 3, 'b': 4, 'c': 3, 'd': 2, 'e': 1, '9': 28}