计算某个字符出现在字符串中的次数

text = "__cfduid=da87a41cb0659f7688798307db2fdc4e21557302481;cookie _ga=GA1.2.1629859343.1557716427;cookie _gid=GA1.2.276255370.1557716427"


def check(s1):
    return sum(map(lambda ch: s1.count(ch), text))


if __name__ == '__main__':
    s1 = "a"
    print("{}在text文本中出现的次数{}".format(s1, check(s1)))
    s1 = "b"
    print("{}在text文本中出现的次数{}".format(s1, check(s1)))
    s1 = "0"
    print("{}在text文本中出现的次数{}".format(s1, check(s1)))
    s1 = "ab0"
    print("{}在text文本中出现的总次数{}".format(s1, check(s1)))