大约有 46,000 项符合查询结果（耗时：0.0602秒） [XML]
Asking the user for input until they give a valid response
...
+750
The simplest way to accomplish this is to put the input method in a while loop. Use continue when you get bad input, and break out of ...
Display image as grayscale using matplotlib
...me).convert("L")
arr = np.asarray(image)
plt.imshow(arr, cmap='gray', vmin=0, vmax=255)
plt.show()
If you want to display the inverse grayscale, switch the cmap to cmap='gray_r'.
share
|
improve t...
How to make a floated div 100% height of its parent?
...s auto, unless #outer is positioned absolutely. Then #inner height will be 0, unless #inner itself is positioned absolutely.
<style>
#outer {
position:absolute;
height:auto; width:200px;
border: 1px solid red;
}
#inner {
position:absolute;
...
Read only the first line of a file?
...
360
Use the .readline() method (Python 2 docs, Python 3 docs):
with open('myfile.txt') as f:
fi...
How do I check if an element is really visible with JavaScript? [duplicate]
...
+100
For the point 2.
I see that no one has suggested to use document.elementFromPoint(x,y), to me it is the fastest way to test if an el...
What does principal end of an association means in 1:1 relationship in Entity framework
...
380
In one-to-one relation one end must be principal and second end must be dependent. Principal end...
How to debug Angular JavaScript Code
...
|
edited Sep 20 at 11:09
Dave Powers
1,23322 gold badges1919 silver badges2525 bronze badges
...
design a stack such that getMinimum( ) should be O(1)
...
30 Answers
30
Active
...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
... // original array won't be modified)
let results = [];
for (let i = 0; i < sorted_arr.length - 1; i++) {
if (sorted_arr[i + 1] == sorted_arr[i]) {
results.push(sorted_arr[i]);
}
}
return results;
}
let duplicatedArray = [9, 9, 111, 2, 3, 4, 4, 5, 7];
console.log...
How to use CMAKE_INSTALL_PREFIX
...
|
edited Oct 10 '12 at 16:30
James
21.8k1010 gold badges7474 silver badges124124 bronze badges
...