webPostman software is often used in development. the common method involves get and post methods to get the corresponding JSON data. get method can pass URL directly and return the corresponding JSON data. However, post requests require JSON data to be submitted, and in SeThe rvlet side gets the corresponding JSON data through the getParameters (“XXXX”) method, so it involves how postman transfers the JSON data with the parameters.
General interfaces are standard JSON data for transmission. For example, if the servlet side receives a parameter with the name requestData, you can s...
Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order.
You may assume no duplicates in the array.
class Solution(object):
def searchInsert(self, nums, target):
"""
:type nums: List[int]
:type target: int
:rtype: int
"""
# target_index = 0
# for i in range(len(nums)):
# if (i == 0 and nums[0] >= target):
# return 0
# elif ( target > nums[i-1] and target <= nums[i]):
# ...
The official category used is: drawNode
The function is drawNode:drawPolygon ().
C++The parameters of the function are as follows:
//Draw a polygon, verts is the point set, count is the number of points, fill color is the fill color, borderWidth is the edge line width, and borderColor is the edge line color.
void drawPolygon(Vec2 *verts, int count, const Color4F &fillColor, float borderWidth, const Color4F &borderColor);
luaUsing table as a point set
Code such asBelow:
function drawNodeRoundRect(drawNode, rect, borderWidth, radius, color, fillColor)
-- segmentsThe finer th...
QWidget *TrackDelegate::createEditor(QWidget *parent,
const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
if (index.column() == durationColumn) {
//QTimeEdit *timeEdit = new QTimeEdit(parent);
QComboBox *timeEdit = new QComboBox(parent);
//timeEdit->installEventFilter(const_cast<TrackDelegate*>(this));
timeEdit->setObjectName("timeEdit");
// timeEdit->setDisplayFormat("mm:ss");
// connect(timeEdit, SIGNAL(editingFinished()),
// ...
I saw this code in the code today:
typedef typename RefBase::weakref_type weakref_type;
At first I couldn’t figure out why I wanted to add a typename, but later I searched it to find out that the keyword was purposeful:
If you don’t add this keyword, the compiler doesn’t know what RefBase:: weakref_type is. It may be static member variable, or static member function, or internal class.
Add this keyword to manually tell the compiler: RefBase:: weakref_type is a type.
Example:
template<typename T>
class A {
public:
typedef T a_type;
};
template<...
In web design, the use of position attributes is very important. Sometimes, if we do not know this property clearly, it will bring us many unexpected difficulties.
positionThere are four different ways to locate attributes: static, fixed, relative, absolute and sticky. Finally, we will introduce the Z-index attribute closely related to the position attribute.
Part one: position: static
staticLocation is the default value of the HTML element, that is, no location, and the element appears in the normal stream.，Therefore, this positioning will not be affected by top, bottom, lef...
1.explode
hive wikiThe explanation for expolde is as follows:
explode() takes in an array (or a map) as an input and outputs the elements of the array (map) as separate rows. UDTFs can be used in the SELECT expression list and as a part of LATERAL VIEW.
As an example of using explode() in the SELECT expression list, consider a table named myTable that has a single column (myCol) and two rows:
Then running the query:
SELECT explode(myCol) AS myNewCol FROM myTable;
1
will produce:
The usage with Maps is similar:
SELECT explode(myMap) AS (myMapKey, myMapValue) FROM myMapTable;
1
To sum u...
