1.upper()方法
将字符串中的每个字符改为大写,示例如下:
a = 'You Are a Boy'
print(a.upper())
2.lower()方法
将字符串中的每个字符改为小写,示例如下:
a = 'You Are a Boy'
print(a.lower())
3.capitalize()方法
将字符串的首字母改为大写,示例如下:
a = 'You Are a Boy'
print(a.capitalize())
输出:
YOU ARE A BOY
you are a boy
You are a boy
网友评论