写一个函数 查找字符串出现最多的字符和个数
时间: 2024-01-25 07:02:08 浏览: 43
好的,以下是一个示例函数实现:
```python
def find_most_frequent_char(s):
# 初始化一个字典
char_dict = {}
# 遍历字符串中的每个字符,统计出现次数
for char in s:
if char in char_dict:
char_dict[char] += 1
else:
char_dict[char] = 1
# 找出出现次数最多的字符和个数
max_count = 0
max_char = ''
for char, count in char_dict.items():
if count > max_count:
max_count = count
max_char = char
return max_char, max_count
```
使用示例:
```python
s = 'abaabbbc'
char, count = find_most_frequent_char(s)
print(f'The most frequent char is "{char}", which appears {count} times.')
```
输出:
```
The most frequent char is "b", which appears 3 times.
```
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