(1975). Children read normal and reversed letters: A simple test of reading skill. The Quarterly Journal of Experimental Psychology, 27 , 539–550.Staller, J., & Sekuler, R. Children read normal and reversed letters: A simple test of reading skill. Quarterly Journal of Experimental ...
>>> letters[::2] 'ABCD' >>> # Get every other character from 1 to the end >>> letters[1::2] 'abcd' 在这里,您首先在letters不提供显式偏移值的情况下进行切片以获取原始字符串的完整副本。为此,您还可以使用省略第二个冒号 ( :)的切片。随着step等于2,切片会从目标字符串中的每个其它字符。您...
>>>letters="AaBbCcDd">>>#Getallcharactersrelyingondefaultoffsets>>>letters[::]'AaBbCcDd'>>>letters[:]'AaBbCcDd'>>>#Geteveryothercharacterfrom0totheend>>>letters[::2]'ABCD'>>>#Geteveryothercharacterfrom1totheend>>>letters[1::2]'abcd' 在这里,您首先在letters不提供显式偏移值的情况下进行...
The meaning of REVERSE is opposite or contrary to a previous or normal condition. How to use reverse in a sentence. Synonym Discussion of Reverse.
2.reversed- turned about in order or relation; "transposed letters" transposed,converse backward- directed or facing toward the back or rear; "a backward view" Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc. ...
Merriam-Webster unabridged Popular in Grammar & Usage See All Point of View: It's Personal Plural and Possessive Names: A Guide What's the difference between 'fascism' and 'socialism'? More Commonly Misspelled Words Words You Always Have to Look Up ...
>>> letters = "ABCDEF" >>> letters[::-1] 'FEDCBA' >>> letters 'ABCDEF' 1. 2. 3. 4. 5. 6. 7. 此切片返回从字符串右端(索引等于)到len(letters) - 1字符串左端(索引为 )的所有字符0。当您使用此技巧时,您会以相反的顺序获得原始字符串的副本,而不会影响 的原始内容letters。
>>> letters ="ABCDEF">>> letters[slice(None,None, -1)]'FEDCBA' AI代码助手复制代码 传递None给 的前两个参数slice()告诉函数您要依赖其内部默认行为,这与没有start和值的标准切片相同stop。换句话说,传递None给start和stop意味着您需要从底层序列的左端到右端的切片。
>>>letters="ABCDEF">>>letters[slice(None,None,-1)]'FEDCBA' 传递None给 的前两个参数slice()告诉函数您要依赖其内部默认行为,这与没有start和值的标准切片相同stop。换句话说,传递None给start和stop意味着您需要从底层序列的左端到右端的切片。