大约有 48,000 项符合查询结果（耗时：0.0394秒） [XML]
How to remove all leading zeroes in a string
...
10 Answers
10
Active
...
Difference between decimal, float and double in .NET?
...
2310
float and double are floating binary point types. In other words, they represent a number like t...
How to add a spinner icon to button when it's in the Loading state?
...
101
If you look at the bootstrap-button.js source, you'll see that the bootstrap plugin replaces th...
Python: fastest way to create a list of n lists
...
105
The probably only way which is marginally faster than
d = [[] for x in xrange(n)]
is
from ...
Selecting with complex criteria from pandas.DataFrame
...
406
Sure! Setup:
>>> import pandas as pd
>>> from random import randint
>>...
Crontab Day of the Week syntax
In crontab does the Day of the Week field run from 0 - 6 or 1 -7 ?
3 Answers
3
...
str performance in python
...
105
'%s' % 100000 is evaluated by the compiler and is equivalent to a constant at run-time.
>&g...
CPU Privilege Rings: Why rings 1 and 2 aren't used?
...art of the modern protection model) only has a concept of privileged (ring 0,1,2) and unprivileged, the benefit to rings 1 and 2 were diminished greatly.
The intent by Intel in having rings 1 and 2 is for the OS to put device drivers at that level, so they are privileged, but somewhat separated fro...
What does tilde-greater-than (~>) mean in Ruby gem dependencies? [duplicate]
...
207
It means "equal to or greater than in the last digit", so e.g. ~> 2.3 means
"equal to 2.3 or...
How to avoid scientific notation for large numbers in JavaScript?
...tific notation if the number is >= 1e21 and has a maximum precision of 20. Other than that, you can roll your own, but it will be messy.
function toFixed(x) {
if (Math.abs(x) < 1.0) {
var e = parseInt(x.toString().split('e-')[1]);
if (e) {
x *= Math.pow(10,e-1);
x = ...