字符串大小写输出和转换
时间: 2024-02-11 19:03:54 浏览: 21
字符串大小写输出和转换可以使用Python内置的字符串方法完成。下面是一些示例代码:
1. 字符串小写输出
```python
s = "Hello, World!"
print(s.lower()) # 输出:hello, world!
```
2. 字符串大写输出
```python
s = "Hello, World!"
print(s.upper()) # 输出:HELLO, WORLD!
```
3. 字符串大小写互换输出
```python
s = "Hello, World!"
print(s.swapcase()) # 输出:hELLO, wORLD!
```
4. 字符串首字母大写输出
```python
s = "hello, world!"
print(s.capitalize()) # 输出:Hello, world!
```
5. 字符串每个单词首字母大写输出
```python
s = "hello, world!"
print(s.title()) # 输出:Hello, World!
```
6. 字符串大小写转换
```python
s = "Hello, World!"
print(s.lower()) # 输出:hello, world!
print(s.upper()) # 输出:HELLO, WORLD!
print(s.swapcase()) # 输出:hELLO, wORLD!
print(s.capitalize()) # 输出:Hello, world!
print(s.title()) # 输出:Hello, World!
```