大约有 31,000 项符合查询结果（耗时：0.0481秒） [XML]
'Incomplete final line' warning when trying to read a .csv file into R
...JSON(paste(readLines("json01.json"), collapse=""))
; and I resolve it by my above method.
share
|
improve this answer
|
follow
|
...
Selector on background color of TextView
...ome reason, your solution is not showing the color but a random image from my drawable resources folder. I tried to clean the project/fix properties/resave/reopen eclipse as it seems really weird, but to no avail. Weird.
– Yahel
Jan 23 '12 at 15:26
...
In Python, when should I use a function instead of a method?
...
My general rule is this - is the operation performed on the object or by the object?
if it is done by the object, it should be a member operation. If it could apply to other things too, or is done by something else to the o...
Like Operator in Entity Framework?
...
@Jon Skeet: to my best knowledge LIKE functionality is in ANSI standard and it is pretty much the same in SQL Server, Oracle, and DB2.
– A-K
Jun 23 '09 at 16:02
...
How to use DISTINCT and ORDER BY in same SELECT statement?
...ved, like this". You probably made a mistake when copying the queries from my blog post. There are two queries, one that uses DISTINCT (no ON) and one that uses DISTINCT ON. Please observe that the latter explicitly does not remove duplicate lengths, but duplicate titles. I do think that my answer ...
Wireshark localhost traffic capture [closed]
...ark instead of loopback; adding the route was necessary for it to work in my situation.
– GWLlosa
Aug 23 '12 at 12:58
1
...
Aborting a shell script if any command returns a non-zero value?
...with
# trap COMMAND SIGNAME [SIGNAME2 SIGNAME3...]
trap "rm -f /tmp/$MYTMPFILE; exit 1" ERR INT TERM
command1
command2
command3
# Partially turn off the trap.
trap - ERR
# Now a control-C will still cause cleanup, but
# a nonzero exit code won't:
ps aux | grep blahblahblah
Or, especially if ...
Using multiple arguments for string formatting in Python (e.g., '%s … %s')
...t to know how to seperate the arguments so that they are two different %s. My mind coming from Java came up with this:
8 A...
How to get enum value by string or int
...
No, you don't want a generic method. This is much easier:
MyEnum myEnum = (MyEnum)myInt;
MyEnum myEnum = (MyEnum)Enum.Parse(typeof(MyEnum), myString);
I think it will also be faster.
share
|
...
What is the function __construct used for?
...oding everything that is initiated or occurs. In other words this would be my cat class and how I would call it.
class_cat.php
class cat {
function speak() {
return "meow";
}
}
somepage.php
include('class_cat.php');
mycat = new cat;
$speak = cat->speak();
echo $speak;
Whe...