大写，小写，首字母大写
word="Hello Eric, would you like to learn some Python today?"
print(word)
print(word.upper())
print(word.lower())
print(word.title())
去空格
word=" Hello Eric "
print(word)
print(word.lstrip())
print(word.rstrip())
print(word.strip())
大写，小写，首字母大写
word="Hello Eric, would you like to learn some Python today?"
print(word)
print(word.upper())
print(word.lower())
print(word.title())
去空格
word=" Hello Eric "
print(word)
print(word.lstrip())
print(word.rstrip())
print(word.strip())
本文标题：2019-03-03 大写，小写，首字母大写，去空格
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