查找字符串中最常见的字符

def find_most_common_char(string):
    char_count = {}  # 创建空字典

    # 遍历字符串中的每个字符
    for char in string:
        if char in char_count:
            char_count[char] += 1
        else:
            char_count[char] = 1

    most_common_char = ''
    max_count = 0

    # 找到计数最大的字符及其出现次数
    for char, count in char_count.items():
        if count > max_count:
            most_common_char = char
            max_count = count

    return most_common_char, max_count

# 测试示例
string = "abcaabbcc"
most_common_char, count = find_most_common_char(string)
print("最常见的字符是：", most_common_char)
print("出现次数：", count)

最常见的字符是： a
出现次数： 3