大约有 47,000 项符合查询结果（耗时：0.0497秒） [XML]
How to set std::tuple element by index?
...rns a reference to the value. So you set the value like this:
std::get<0>(myTuple) = newValue;
This of course assumes that myTuple is non-const. You can even move items out of a tuple via std::move, by invoking it on the tuple:
auto movedTo = std::get<0>(std::move(myTuple));
...
How to create enum like type in TypeScript?
...
TypeScript 0.9+ has a specification for enums:
enum AnimationType {
BOUNCE,
DROP,
}
The final comma is optional.
share
|
...
What is & used for
...
130
& is HTML for "Start of a character reference".
&amp; is the character reference for "A...
Formatting Decimal places in R
I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to screen (or written to a file). How does one do that?
...
What does (x ^ 0x1) != 0 mean?
...
The XOR operation (x ^ 0x1) inverts bit 0. So the expression effectively means: if bit 0 of x is 0, or any other bit of x is 1, then the expression is true.
Conversely the expression is false if x == 1.
So the test is the same as:
if (x != 1)
...
How to change the default font size in ggplot2
...
Use theme_set()
theme_set(theme_gray(base_size = 18))
qplot(1:10, 1:10)
share
|
improve this answer
|
follow
|
...
Differences between utf8 and latin1
...
answered Apr 25 '10 at 16:54
BalusCBalusC
953k341341 gold badges34193419 silver badges34053405 bronze badges
...
How can you use an object's property in a double-quoted string?
...
robdy
3,78033 gold badges1111 silver badges3030 bronze badges
answered Jul 17 '09 at 21:41
JoeyJoey
...
How can I suppress column header output for a single SQL statement?
... pete |
| 2 | john |
| 3 | mike |
+------+-------+
3 rows in set (0.00 sec)
Credit to ErichBSchulz for pointing out the -N alias.
To remove the grid (the vertical and horizontal lines) around the results use -s (--silent). Columns are separated with a TAB character.
mysql -s ...
use tes...
Calendar Recurring/Repeating Events - Best Storage Method
...eta_key meta_value
1 1 repeat_start 1299132000
2 1 repeat_interval_1 432000
With repeat_start being a date with no time as a unix timestamp, and repeat_interval an amount in seconds between intervals (432000 is 5 days).
repeat_interval_1 goes with...