#将一组既包含字符串又包含整数的列全部输出为小写形式
#2017年10月10日14:20:07
L1 = ['Hello','World',18,'Apple',None] L2 = [s.lower() for s in L1 if isinstance(s,str) and 1 == 1] print(L2)
输出为: C:\Users\loysaid_yan>"F:\Users\loysaid_yan\AppData\Local\Programs\python course\ liebiaoshengchengshi\test1.py" ['hello', 'world', 'apple']
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#将一组既包含字符串又包含整数的列全部输出为小写形式
#2017年10月10日14:20:07
* coding: utf-8 *
L1 = ['Hello','World',18,'Apple',None] L2 = [s.lower() for s in L1 if isinstance(s,str) and 1 == 1] print(L2)
输出为: C:\Users\loysaid_yan>"F:\Users\loysaid_yan\AppData\Local\Programs\python course\ liebiaoshengchengshi\test1.py" ['hello', 'world', 'apple']