split

问题 I want to make sure that I only print maximum 80 character long lines, but I have a string s that can be both shorter and longer than that. So I want to split it into lines without splitting any words. Example of long string: s = "This is a long string that is holding more than 80 characters and thus should be split into several lines. That is if everything is working properly and nicely and all that. No mishaps no typos. No bugs. But I want the code too look good too. That's the problem!" I

问题 I want to make sure that I only print maximum 80 character long lines, but I have a string s that can be both shorter and longer than that. So I want to split it into lines without splitting any words. Example of long string: s = "This is a long string that is holding more than 80 characters and thus should be split into several lines. That is if everything is working properly and nicely and all that. No mishaps no typos. No bugs. But I want the code too look good too. That's the problem!" I

问题 I have a word list like below. I want to split the list by . . Is there any better or useful code in Python 3? a = ['this', 'is', 'a', 'cat', '.', 'hello', '.', 'she', 'is', 'nice', '.'] result = [] tmp = [] for elm in a: if elm is not '.': tmp.append(elm) else: result.append(tmp) tmp = [] print(result) # result: [['this', 'is', 'a', 'cat'], ['hello'], ['she', 'is', 'nice']] Update Add test cases to handle it correctly. a = ['this', 'is', 'a', 'cat', '.', 'hello', '.', 'she', 'is', 'nice', '.

问题 How can I insert a string before the extension in an image filename? For example, I need to convert this: ../Course/Assess/Responsive_Course_1_1.png to this: ../Course/Assess/Responsive_Course_1_1_large.png 回答1: If we assume that an extension is any series of letters, numbers, underscore or dash after the last dot in the file name, then: filename = filename.replace(/(\.[\w\d_-]+)$/i, '_large$1'); 回答2: Use javascript lastIndexOf, something like: var s = "Courses/Assess/Responsive_Cousre_1_1

问题 I have a log file with size of 2.5 GB. Is there any way to split this file into smaller files using windows command prompt? 回答1: If you have installed Git for Windows, you should have Git Bash installed, since that comes with Git. Use the split command in Git Bash to split a file: into files of size 500MB each: split myLargeFile.txt -b 500m into files with 10000 lines each: split myLargeFile.txt -l 10000 Tips: If you don't have Git/Git Bash, download at https://git-scm.com/download If you

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: How to split a String by space I need help while parsing a text file. The text file contains data like This is different type of file. Can not split it using ' '(white space) My problem is spaces between words are not similar. Sometimes there is single space and sometimes multiple spaces are given. I need to split the string in such a way that I will get only words, not spaces. 回答1: str.split("\\s+") would work.

问题 I'm having trouble trying to get my file into a dictionary with multiple values bench,103,222,32 table,833,99,23 chair,83,22,882 My code so far is sol={} infile= open("furniture.dat","r") for line in infile: key,value=line.split(",") I'm trying to get the words as keys and the number as the value for the dictionary, but receiving error on the split() 回答1: Firstly, for line in infile will read each line of the file as a string. Secondly, you're getting an error because split(",") will separate

问题 What I am trying to do is pretty simple, but I couldn't find how to do it. Starting with 1st element, put every 4th element into a new list. Repeat with the 2nd, 3rd, and 4th elements. From: list = ['1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b'] To: list1 = ['1', '5', '9'] list2 = ['2', '6', 'a'] list3 = ['3', '7', 'b'] list4 = ['4', '9'] In other words, I need to know how to: Get the Nth element from a list (in a loop) Store it in new arrays Repeat 回答1: The specific solution is to

问题 What I am trying to do is pretty simple, but I couldn't find how to do it. Starting with 1st element, put every 4th element into a new list. Repeat with the 2nd, 3rd, and 4th elements. From: list = ['1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b'] To: list1 = ['1', '5', '9'] list2 = ['2', '6', 'a'] list3 = ['3', '7', 'b'] list4 = ['4', '9'] In other words, I need to know how to: Get the Nth element from a list (in a loop) Store it in new arrays Repeat 回答1: The specific solution is to

问题 i have a json containing an array of objects, every object contains a unique value in: "id":"value" i've followed this other answer and i can split the whole document in multiple files using jq and awk jq -c ".[]" big.json | gawk '{print > "doc00" NR ".json";}' in this way the output files are named sequentially. how i can name the files using the id value? 回答1: For each element in the array, print id and the element itself in two separate lines, thus you can grab the id from odd numbered