set

问题 I have like a log.txt file which contains: MyName My batch: @echo off set name= [log.txt] in the [log.txt] part, it should read 'MyName' from the log.txt file, to set it as 'name'. How? 回答1: You can also use set /p name=<log.txt which might be considered shorter and a little less ugly. 回答2: In cmd.exe, there's only this ugly way: @echo off for /f "usebackq tokens=* delims=" %%i in ("log.txt") do ( set name=%%i ) 来源： https://stackoverflow.com/questions/932552/set-log-txt-in-batch

问题 I have like a log.txt file which contains: MyName My batch: @echo off set name= [log.txt] in the [log.txt] part, it should read 'MyName' from the log.txt file, to set it as 'name'. How? 回答1: You can also use set /p name=<log.txt which might be considered shorter and a little less ugly. 回答2: In cmd.exe, there's only this ugly way: @echo off for /f "usebackq tokens=* delims=" %%i in ("log.txt") do ( set name=%%i ) 来源： https://stackoverflow.com/questions/932552/set-log-txt-in-batch

问题 I've a table cSc_Role with a column RoleSettings . RoleSettings is datatype image. The Content is something like this: 0x504B030414000000080000000000E637CA2A4 Now I need to update this column for one row. Like this: UPDATE cSc_Role SET RoleSettings = '0x343240000000000E637CA2A430500' WHERE Naming = 'User X' But with binary data it seems like this is not possible to do it with a string. The other option is, I can provide the image in a temporary .bak file. And then do an INSERT INTO . But with

问题 I have a list of integer array, where each array have some numbers sorted. Here I want to find the most commonly occurring combination of sequence of integers based on all the array. For example if the list of array is as follows A1 - 1 2 3 5 7 8 A2 - 2 3 5 6 7 A3 - 3 5 7 9 A4 - 1 2 3 7 9 A5 - 3 5 7 10 Here {3,5,7} - {A1,A3,A5} {2,3} - {A1,A2,A4} So we can take {3,5,7} or {2,3} as the most commonly occurring combinations. Now the algorithm i used is as following Find intersection of a set

问题 Using this code: from itertools import product list1 = ['Gabe', 'Taylor', 'Kyle', 'Jay'] list2 = ['Gabe', 'Taylor', 'Kyle', 'Jay', 'James', 'John', 'Tyde','Chris', 'Bruno', 'David'] list3 = ['Gabe', 'Taylor', 'Kyle', 'Jay', 'James', 'John', 'Tyde','Chris', 'Bruno', 'David'] list4 = ['Kyle', 'James', 'John', 'Tyde','Bruno', 'Drew', 'Chris'] list5 = ['James', 'John', 'Brendan','Tim', 'Drew' ] FinalList = [] for x in product(list1, list2, list3, list4, list5): # check for duplicates if len(set(x

问题 I have two lists l and l_match . l_match is an empty list. l = ['gtttaattgagttgtcatatgttaataacg', 'tttaattgagttgtcatatgttaataacgg', 'ttaattgagttgtcatatgttaataacggt', 'taattgagttgtcatatgttaataacggta', 'aattgagttgtcatatgttaataacggtat'] l_match = [] print list(set(l) - set(l_match)) gives the output ['aattgagttgtcatatgttaataacggtat', 'tttaattgagttgtcatatgttaataacgg', 'ttaattgagttgtcatatgttaataacggt', 'taattgagttgtcatatgttaataacggta', 'gtttaattgagttgtcatatgttaataacg'] I want the output the same

问题 I'm reading Set You use a set instead of an array when you need to test efficiently for membership and you aren’t concerned with the order of the elements in the collection, or when you need to ensure that each element appears only once in a collection. Basically Set ensures uniqueness, it has some methods and relies on Hashable Use the contains(_:) method to test whether a set contains a specific element. Use the subtracting(_:) method to create a new set with the elements of a set that are

问题 I have two custom classes, ChangeRequest and ChangeRequests , where a ChangeRequests can contain many ChangeRequest instances. public class ChangeRequests : IXmlSerializable, ICloneable, IEnumerable<ChangeRequest>, IEquatable<ChangeRequests> { ... } public class ChangeRequest : ICloneable, IXmlSerializable, IEquatable<ChangeRequest> { ... } I am trying to do a union of two ChangeRequests instances. However, duplicates do not seem to be removed. My MSTest unit test is as follows: var cr1 = new

问题 Given a set S = {s i : {z j : z ∈ N } }, what is a time-efficient algorithm for computing the unique sets of intersections of the subsets of S ? For background, I am dealing with several versions of this problem, some larger than others. In the smallest one | S | ≈ 1,000, |s i | ≈ 10,000 and the values are zip codes. Tiny example for clarity: Input: S = {{},{1},{2,3},{3,4,5,6,7,8,9,10}} Output: {{},{1},{2,3},{3,4,5,6,7,8,9,10},{3}} | S | = 4 and there are 2 4 = 16 subsets of S . However,

问题 This question already has answers here : Finding intersection/difference between python lists (6 answers) Closed 5 years ago . How do you find or keep only the sublists of a list if it the sublist is also present within another list? lsta = [['a','b','c'],['c','d','e'],['e','f','g']] lstb = [['a','b','c'],['d','d','e'],['e','f','g']] I'd like to do something like set(lsta) & set(lstb) Desired_List = [['a','b','c'],['e','f','g']] The reason I'd like to do something like set is for it's speed