split

问题 (Calculator program)count in one step with math basic order if there is a string = "5+2*6/9"(which is user input) how to get number 2 and 6? i've been trying with split but if there is no '+' it fail :( here is my code atm string[] a = kalimat.Split('*'); string[] a1 = a[0].Split('+'); string[] a2 = a1[a1.Count() - 1].Split('-'); string[] b1 = a[1].Split('+'); string[] b2 = b1[0].Split('-'); ang1 = a2[a2.Count() - 1]; ang2 = b2[0]; angka1 = Convert.ToDouble(ang1); angka2 = Convert.ToDouble

问题 I have table with string data like this: id | string_data 1 | red;green;blue 2 | orange 3 | purple;cyan And I need split string data to items with row numbers: id | num | item 1 | 1 | red 1 | 2 | green 1 | 3 | blue 2 | 1 | orange 3 | 1 | purple 3 | 2 | cyan I know regexp_split_to_table() but I have problem to combine it with row_number(). Does anybody know how to solve this? Thanks! 回答1: If you don't need a regex it's more efficient to use string_to_array() instead of regexp_split_to_table()

问题 Use Case I need to split large files ( ~5G ) of JSON data into smaller files with newline-delimited JSON in a memory efficient way (i.e., without having to read the entire JSON blob into memory). The JSON data in each source file is an array of objects. Unfortunately, the source data is not newline-delimited JSON and in some cases there are no newlines in the files at all. This means I can't simply use the split command to split the large file into smaller chunks by newline. Here are examples

问题 This question already has answers here : When splitting an empty string in Python, why does split() return an empty list while split('\n') returns ['']? (6 answers) Closed 2 years ago . This is the result when I apply split() against an empty string with default delimiter and with a " " as delimiter in Python. >>> print(" ".split(" ")) ['',''] >>> print(" ".split()) [] Can somebody please explain? 回答1: The documentation on str.split explicitly mentions the different behavior if you split with

问题 I have a couple of keccaks, which could be reduced to one, if I would find a cheap way to get parts of the created uint. pragma solidity ^0.4.19; contract test { function test() { } function sup() returns (uint test) { uint _test = uint(keccak256("wow")); return _test; } } This returns me a sweet random number: 13483274892375982735325 Now the plan is that instead of calling keccak 5 times with different "seeds", I could take that number apart and get something like: 1348, 3274, 8923 etc.

问题 My current project consist of UID in which it looks like follows 855FM21 , 855FM22 ,etc i want the last number from the uid in which it can be done by splitting the string. How to split this string after the sub string "FM" .? 回答1: To split this string after the sub string "FM", use explode with delimiter as FM . Do like $uid = "855FM22"; $split = explode("FM",$uid); var_dump($split[1]); 回答2: You can use the explode() method. <?php $UID = "855FM21"; $stringParts = explode("FM", $UID);

问题 I have this line as an example from a CSV file: 2412,21,"Which of the following is not found in all cells?","Curriculum","Life and Living Processes, Life Processes",,,1,0,"endofline" I want to split it into an array. The immediate thought is to just split on commas, but some of the strings have commas in them, eg "Life and Living Processes, Life Processes", and these should stay as single elements in the array. Note also that there's two commas with nothing in between - i want to get these as

问题 This question already has answers here : SQLalchemy not committing changes when setting role (1 answer) Executing multiple statements with Postgresql via SQLAlchemy does not persist changes (2 answers) Using python sqlalchemy to execute raw queries with WITH statement (1 answer) Closed 6 months ago . I am trying to execute and sql query through python. This is based on my first question on how to split columns based on two dataframes(Splittin of company extensions and company name). Since I

问题 The value ALL||test > test's done> test's done again's done||test > test's done> test's done again's done 2 is an array list what i want to do is have a list separated by || so the first element is : ALL second: test > test's done> test's done again's done last: test > test's done> test's done again's done 2 code i wrote: String record1 = record.toString(); String[] parts = record1.split("||"); for (int i = 1; i <= parts.length; i++) { System.out.println(parts[i]); } What i'm getting is each

问题 This question already has answers here : Split delimited strings in a column and insert as new rows [duplicate] (6 answers) Closed last month . I have an R data frame as follows- df <- data.frame( FDR = c (0.009, 0.007, 0.007), Probe_ID = c("1555272_at", "1557203_at", "1557384_at"), Gene.Symbol = c("RSPH10B2///RSPH10B","PABPC1L2B///PABPC1L2A","LOC100506639///ZNF131"), Gene.ID = c("728194///222967","645974///340529","100506639///7690")) df FDR Probe_ID Gene.Symbol Gene.ID 1 0.009 1555272_at