Setting default dictionary values in Python 05:23 ↑ 5 Keys to Python Success 🔑 Sign up for my 5 day email course and learn essential concepts that introductory courses often overlook! Table of Contents Getting the first N elements from a list Slicing makes a new list The start inde...
新建一个python文件命名为py3_slicing.py,在这个文件中进行操作代码编写: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #定义一个list numlist = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9] #正向索引 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 #反向索引 -10,-9,-8,-7,-6,-5,-4,-3,...
days[:-2] Output: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri'] A single in a dictionary can be accessed using its key:phone_numbers = {"John Smith":"+37682929928","Marry Simpsons":"+423998200919"}phone_numbers["Marry Simpsons"]Output: '+423998200919'...