通过键盘输入一串小写字母(a到z)组成的字符串。请编写一个字符串压缩程序(函数实现),将字符串中连续出席的重复字母(不超过9个)进行压缩,并输出压缩后的字符串。 压缩规则: 1、仅压缩连续重复出现的字符。比如字符串"abcbc"由于无连续重复字符,压缩后的字符串还是"abcbc"。 2、压缩字段的格式为"字符重复的次数+字符"。例如:字符串"xxxyyyyyyz"压缩后就成为"3x6yz"。
时间: 2023-05-22 20:04:09 浏览: 196
以下是我为您编写的字符串压缩函数代码,可以通过输入一个小写字母组成的字符串进行压缩:
```
def compress_string(s):
compressed = ""
count = 1
prev_char = s[0]
for char in s[1:]:
if char == prev_char:
count += 1
else:
compressed += str(count) + prev_char if count > 1 else prev_char
count = 1
prev_char = char
compressed += str(count) + prev_char if count > 1 else prev_char
return compressed
```
使用示例:
```
s = "xxxyyyyyyz"
compressed = compress_string(s)
print(compressed)
```
输出结果为:3x6yz
相关问题
通过键盘输入一串小写字母(a到z)组成的字符串。请编写一个字符串压缩程序(函数实现),将字符串中连续出席的重复字母(不超过9个)进行压缩,并输出压缩后的字符串。
好的,这是一个字符串压缩的问题。我们可以在遍历字符串的过程中记录字母出现的次数,如果出现的字母不同或者连续出现的个数超过了9个,就将其压缩后输出。以下是实现这个程序的Python代码:
```
def compress_string(s):
if not s:
return ""
res, count = "", 1
for i in range(1, len(s)):
if s[i] == s[i-1]:
count += 1
else:
res += s[i-1] + str(count) if count <= 9 else s[i-1] + '9'
count = 1
res += s[-1] + str(count) if count <= 9 else s[-1] + '9'
return res
```
现在,请问还有什么问题需要我回答呢?
用python编写一个程序,编写函数,判断字符串中是否包含小写字母
你可以编写一个名为 `contains_lowercase_letters` 的函数,该函数接收一个字符串作为参数,然后遍历字符串的每一个字符,检查是否有小写字母。下面是一个简单的例子:
```python
def contains_lowercase_letters(input_string):
for char in input_string:
if char.islower(): # 判断字符是否为小写字母
return True # 找到一个小写字母就返回True
return False # 遍历完整个字符串都没有找到小写字母,则返回False
# 测试函数
example_string = "Hello World!"
result = contains_lowercase_letters(example_string)
if result:
print(f"{example_string} 包含小写字母.")
else:
print(f"{example_string} 不包含小写字母.")
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