大约有 1,300 项符合查询结果（耗时：0.0212秒） [XML]
How to import CSV file data into a PostgreSQL table?
How can I write a stored procedure that imports data from a CSV file and populates the table?
18 Answers
...
Prevent row names to be written to file when using write.csv
...
write.csv(t, "t.csv", row.names=FALSE)
From ?write.csv:
row.names: either a logical value indicating whether the row names of
‘x’ are to be written along with ‘x’, or a character vector
of row names t...
Convert XLS to CSV on command line
How could I convert an XLS file to a CSV file on the windows command line.
15 Answers
...
How to find whether or not a variable is empty in Bash
...in practice this tests whether $variable is empty or not. As an addition (3½ years after the fact :-) ) I would never use this myself since -z does what I probably want in a clearer way, but I wanted to add this answer since this method is frequently seen "in the wild"; perhaps written this way on ...
List of zeros in python [duplicate]
...d Feb 10 '13 at 21:21
Seppo ErviäläSeppo Erviälä
5,62044 gold badges3030 silver badges3838 bronze badges
...
Is it possible to force Excel recognize UTF-8 CSV files automatically?
...g a part of an application that's responsible for exporting some data into CSV files. The application always uses UTF-8 because of its multilingual nature at all levels. But opening such CSV files (containing e.g. diacritics, cyrillic letters, Greek letters) in Excel does not achieve the expected re...
What is the best way to conditionally apply a class?
... answered Jul 26 '12 at 7:53
Lèse majestéLèse majesté
7,35022 gold badges3030 silver badges
How do I write data into CSV format as string (not file)?
I want to cast data like [1,2,'a','He said "what do you mean?"'] to a CSV-formatted string.
6 Answers
...
UIImagePickerController error: Snapshotting a view that has not been rendered results in an empty sn
...an 26 '14 at 11:50
Germán MarquèsGermán Marquès
4933 bronze badges
...
How do I create a copy of an object in PHP?
It appears that in PHP objects are passed by reference. Even assignment operators do not appear to be creating a copy of the Object.
...