从出现多次的字符串中删除特定字符

def remove_specific_chars(string, chars_to_remove):
    char_count = {}
    for char in string:
        if char in char_count:
            char_count[char] += 1
        else:
            char_count[char] = 1
    
    new_string = ""
    for char in string:
        if char not in chars_to_remove:
            new_string += char
    
    return new_string