大约有 12,100 项符合查询结果（耗时：0.0387秒） [XML]
Python: reload component Y imported with 'from X import Y'?
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How to align center the text in html table row?
... Bean
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answered Jan 24 '12 at 11:49
David LabergeDavid Laberge
11.8k1414 go...
How does Go update third-party packages?
...tupGuy
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answered Apr 30 '12 at 12:33
tux21btux21b
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How to add an extra column to a NumPy array
...o the following:
import numpy as np
N = 10
a = np.random.rand(N,N)
b = np.zeros((N,N+1))
b[:,:-1] = a
And timings:
In [23]: N = 10
In [24]: a = np.random.rand(N,N)
In [25]: %timeit b = np.hstack((a,np.zeros((a.shape[0],1))))
10000 loops, best of 3: 19.6 us per loop
In [27]: %timeit b = np.zer...
Making custom right-click context menus for my web-app
... CSS3 */
/* The whole thing */
.custom-menu {
display: none;
z-index: 1000;
position: absolute;
overflow: hidden;
border: 1px solid #CCC;
white-space: nowrap;
font-family: sans-serif;
background: #FFF;
color: #333;
border-radius: 5px;
paddin...
Insert, on duplicate update in PostgreSQL?
...e (id, column_1, column_2)
VALUES (1, 'A', 'X'), (2, 'B', 'Y'), (3, 'C', 'Z')
ON CONFLICT (id) DO UPDATE
SET column_1 = excluded.column_1,
column_2 = excluded.column_2;
Searching postgresql's email group archives for "upsert" leads to finding an example of doing what you possibly want...
Code Golf - π day
...ndition
lM >y
]sy
# main loop
# Push Input value
[Input:]n?
# Initialize registers
# M=rows
d sM
# Y=1-(M-(M%2))
dd2%-1r-sY
# R=M^2
d*sR
# N=0
0sN
[Output:]p
# Main routine
lyx
# Print value of PI, N/R
5klNlR/p
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Opacity of div's background without affecting contained element in IE 8?
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How to sort an array in Bash
...antak
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Dynamic Sorting within SQL Stored Procedures
...same between different stored procedures, so it's at least neat and recognizable when you go in to make changes.
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