要统计字符数量,可以使用Python中的count()方法或者自定义函数来统计字符出现的次数。下面分别介绍这两种方法:
count()方法统计字符数量:string = "Hello, World!"char = 'o'count = string.count(char)print(f"Character '{char}' appears {count} times.")使用自定义函数统计字符数量:def count_char(string, char): count = 0 for c in string: if c == char: count += 1 return countstring = "Hello, World!"char = 'o'count = count_char(string, char)print(f"Character '{char}' appears {count} times.")以上两种方法都可以用来统计字符数量,根据实际需求选择合适的方法。


