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交作业啦(≧∀≦)ゞ

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小叶子96652

#1 Created at ... [Delete] [Delete and Lock User]

弄了一个函数，仅将list中的str全部变成小写，其他数据保持不变~~^^~~

def convert_i(L):
 if not isinstance(L,list):
  raise TypeError('please enter list')
 L1=dict(enumerate(L))
 l1=[]
 for key,value in L1.items():
  if isinstance(value,str):
   L1[key]=value.lower()
  else:
   pass
 L=list(L1.values())
 return L

独角兽伽德

#2 Created at ... [Delete] [Delete and Lock User]

用列表生成式的话只需要一行代码

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