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[ Applied Data Science with Python]week1
[ Applied Data Science with Python]week1FunctionsTypes and SequencesTypes字符串Sequences字典Split Functions 在Python中,你可以设置参数的预设值。例子中,我们可以重写add_numbers函数来接受三个参数, 但我们可以设最后的参数为预设的None 这意味着你可以使用两个值或三个值来调用add_...原创 2019-04-23 21:31:27 · 367 阅读 · 0 评论 -
[ Applied Data Science with Python]week1-part2
[ Applied Data Science with Python]week1-part2string 格式化输出读写CSV文件时间 string 格式化输出 sales_record = { 'price': 3.24, 'num_items': 4, 'person': 'Chris'} sales_statement = '{} bought {} item(s) at a price ...原创 2019-04-24 20:31:29 · 336 阅读 · 0 评论