技術標籤：# 4.2 Pythonpython字串strswapcase

str.swapcase()

返回原字串的副本，其中大寫字元轉換為小寫，反之亦然。 請注意 s.swapcase().swapcase() == s 並不一定為真值。

# coding:utf-8

info_one = 'Python Code Is Good'
info_two = 'PYTHON DJANGO FLASK'
info_three = 'python web so easy'

info_one_new = info_one.swapcase()
info_two_new = info_two.
 
swapcase()
info_three_new = info_three.swapcase()

print(info_one_new)
print(info_two_new)
print(info_three_new)