大约有 22,000 项符合查询结果（耗时：0.0375秒） [XML]
Pandas DataFrame column to list [duplicate]
...e, header=False, index=False).split('\n')
this will return each row as a string.
['1.0,4', '2.0,5', '3.0,6', '']
Then split each row to get list of list. Each element after splitting is a unicode. We need to convert it required datatype.
def f(row_str):
row_list = row_str.split(',')
retu...
What is lazy loading in Hibernate?
...dren in the collection in one db query. Unless you used the very special "extra lazy" lazy loading hint. Or unless you cache the collection in second level cache and the associated children are not also cached.
– Steve Ebersole
Feb 20 '14 at 17:37
...
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
...ocalhost socket to work, and it may be of importance if you don't want the extra overhead from sending packets to the router before the database is accessed.
– Kebman
Apr 17 '13 at 22:00
...
Why does git perform fast-forward merges by default?
... also mentions the config merge.ff:
By default, Git does not create an extra merge commit when merging a commit that is a descendant of the current commit. Instead, the tip of the current branch is fast-forwarded.
When set to false, this variable tells Git to create an extra merge commit in su...
Concatenating Files And Insert New Line In Between Files
...
This puts the string at the end of the file; how do I get it inserted between each file?
– onassar
Nov 19 '18 at 16:37
...
Why can't I call read() twice on an open file?
...I call it the second time, it doesn't seem to return the file content as a string?
7 Answers
...
Understanding Spring @Autowired usage
...(Color color) {
this.color = color;
}
The @Resource (you can read some extra data about it in the first comment on this answer) spares you the use of two annotations and instead you only use one.
I'll just add two more comments:
Good practice would be to use @Inject instead of @Autowired beca...
GIT: Checkout to a specific folder
...important. The exported name is literally just prefixed with the specified string.
If you want to export a certain directory, there are some tricks involved. The command only takes files, not directories. To apply it to directories, use the 'find' command and pipe the output to git.
find dirname ...
javascript: pause setTimeout();
... my edit, I've to answer this myself. My solution makes it possible to use extra arguments as third (3, 4, 5...) parameter and to clear the timer:
function Timer(callback, delay) {
var args = arguments,
self = this,
timer, start;
this.clear = function () {
clearTime...
Are PHP include paths relative to the file or the calling code?
...
So if you start the string with ./, does it check the calling script's directory first or the current working directory first?
– Pacerier
Jan 29 '15 at 4:44
...