delimiter

问题 I'm trying to split the values of a csv file into separate lines using the delimiter=, as a point to split from. i.e. #csv file video1,video2,video3 video4,video5,video6 #Preferred output: video1, video2, video3, ect.... So far I have: @echo off setLocal EnableDelayedExpansion for /f "tokens=* delims=, " %%a in (input.csv) do ( set /a N+=1 echo ^%%a^,>>output.csv ) However I run into the issue of parameter %%a just being added as a string. How would I cause a split instead for each , and put

问题 I'm trying to split the values of a csv file into separate lines using the delimiter=, as a point to split from. i.e. #csv file video1,video2,video3 video4,video5,video6 #Preferred output: video1, video2, video3, ect.... So far I have: @echo off setLocal EnableDelayedExpansion for /f "tokens=* delims=, " %%a in (input.csv) do ( set /a N+=1 echo ^%%a^,>>output.csv ) However I run into the issue of parameter %%a just being added as a string. How would I cause a split instead for each , and put

问题 I was trying to import a CSV file into a PostgreSQL table using the COPY command. The delimiter of the CSV file is comma (,). However, there's also a text field with a comma in the value. For example: COPY schema.table from '/folder/foo.csv' delimiter ',' CSV header Here's the content of the foo.csv file: Name,Description,Age John,Male\,Tall,30 How to distinguish between the literal comma and the delimiter? Thanks for your help. 回答1: To have the \ to be recognized as a escape character it is

问题 I have a list of tuples like so (the strings are fillers... my actual code has unknown values for these): list = [ ('one', 'two', 'one'), ('one', 'two', 'one', 'two', 'one'), ('one', 'two', 'one', 'two', 'one', 'two', 'one'...) ] I would like to wrap every other string (in this example, the 'two' strings) in <strong> </strong> tags. It's frustrating that I can't do '<strong>'.join(list) because every other one won't have the /. This is the only approach I can think of but the use of the flag

问题 I have a file in CSV format where the delimiter is the ASCII unit separator ^_ and the line terminator is the ASCII record separator ^^ (obviously, since these are nonprinting characters, I've just used one of the standard ways of writing them here). I've written plenty of code that reads and writes CSV files, so my issue isn't with Python's csv module per se. The problem is that the csv module doesn't support reading (but it does support writing) line terminators other than a carriage return

问题 I have a file in CSV format where the delimiter is the ASCII unit separator ^_ and the line terminator is the ASCII record separator ^^ (obviously, since these are nonprinting characters, I've just used one of the standard ways of writing them here). I've written plenty of code that reads and writes CSV files, so my issue isn't with Python's csv module per se. The problem is that the csv module doesn't support reading (but it does support writing) line terminators other than a carriage return

问题 I have a file in CSV format where the delimiter is the ASCII unit separator ^_ and the line terminator is the ASCII record separator ^^ (obviously, since these are nonprinting characters, I've just used one of the standard ways of writing them here). I've written plenty of code that reads and writes CSV files, so my issue isn't with Python's csv module per se. The problem is that the csv module doesn't support reading (but it does support writing) line terminators other than a carriage return

问题 I have a file in CSV format where the delimiter is the ASCII unit separator ^_ and the line terminator is the ASCII record separator ^^ (obviously, since these are nonprinting characters, I've just used one of the standard ways of writing them here). I've written plenty of code that reads and writes CSV files, so my issue isn't with Python's csv module per se. The problem is that the csv module doesn't support reading (but it does support writing) line terminators other than a carriage return

问题 This question already has answers here : How can I read and parse CSV files in C++? (37 answers) Closed 2 years ago . I would like to know how can I use 2 or more delimiters in the getline functon, that's my problem: The program reads a text file... each line is goning to be like: New Your, Paris, 100 CityA, CityB, 200 I am using getline(file, line), but I got the whole line, when I want to to get CityA, then CityB and then the number; and if I use ',' delimiter, I won't know when is the next

问题 I have loaded a csv file in memory. My csv file uses ";" as the field delimiter. It seems vba default delimiter is "," because when I try to access certain row and column of the loaded csv file, vba advances through the elements with refrence to number of "," used. example: In the 10th row of my data there are five columns: aa 12,34 bb 5,678 (here "," is decimal separator) in the csv file which the delimiter is ";" it looks like this: aa;12,34;bb;5,678 so when I write MyData(10,2) I am