大约有 3,516 项符合查询结果（耗时：0.0187秒） [XML]
Why do x86-64 systems have only a 48 bit virtual address space?
...oint being that we can't put enough RAM in a PC to support this restricted range, let alone what would be required for a full 64-bit address space.
– Damien_The_Unbeliever
Jul 18 '11 at 11:10
...
How do I determine the size of my array in C?
...dard says is that integer values from 0 to 127 can be represented, and its range is at least either -127 to 127 (char is signed) or 0 to 255 (char is unsigned).
– vonbrand
Feb 1 '13 at 20:57
...
Can functions be passed as parameters?
...nt {
var a = make([]int, len(alist), len(alist))
for index, val := range alist {
a[index] = f(val)
}
return a
}
func main() {
alist := []int{4, 5, 6, 7}
result := mapper(square, alist)
fmt.Println(result)
}
...
What are attributes in .NET?
...work with :-( )
You can put attributes on most things and there are whole range of predefined attributes. The editor mentioned above also looks for custom attributes on properties that describe the property and how to edit it.
Once you get the whole idea, you'll wonder how you ever lived without t...
Reverting a single file to a previous version in git [duplicate]
...ges you want and commit that.
E.g. If you want to undo the changes in the range from..to, do the following
git diff to..from > foo.diff # get a reverse diff
patch < foo.diff
git commit -a -m "Undid changes from..to".
...
Is there a way to auto-adjust Excel column widths with pandas.ExcelWriter?
...ader_list = df.columns.values.tolist() # Generate list of headers
for i in range(0, len(header_list)):
worksheet.set_column(i, i, len(header_list[i])) # Set column widths based on len(header)
writer.save() # Save the excel file
...
Declare slice or make slice?
...]int, fn func(int) bool) []int {
var p []int // == nil
for _, v := range s {
if fn(v) {
p = append(p, v)
}
}
return p
}
It means that, to append to a slice, you don't have to allocate memory first: the nil slice p int[] is enough as a slice to add to.
...
How to use LINQ to select object with minimum or maximum property value
...ch entry. Still using the people age as example:
var youngest = Enumerable.Range(0, int.MaxValue)
.Zip(people, (idx, ppl) => (ppl.DateOfBirth, idx, ppl)).Min().Item3;
share
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impr...
Matplotlib - global legend and title aside subplots
...properly. If you don't understand let me know:
legendLabels = []
for i in range(modSize):
legendLabels.append(ax.plot(x,hstack((array([0]),actSum[j,semi,i,semi])), color=plotColor[i%8], dashes=dashes[i%4])[0]) #linestyle=dashs[i%4]
legArgs = dict(title='AM Templates (Hz)',bbox_to_anchor=...
Why does multiprocessing use only a single core after I import numpy?
...)
>>> os.sched_getaffinity(0)
{1, 3}
>>> x = {i for i in range(10)}
>>> x
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
>>> os.sched_setaffinity(0, x)
>>> os.sched_getaffinity(0)
{0, 1, 2, 3}
s...