大约有 47,000 项符合查询结果(耗时:0.0393秒) [XML]
What is the MySQL VARCHAR max size?
...
answered Nov 22 '12 at 6:22
rajukoyilandyrajukoyilandy
4,81122 gold badges1313 silver badges3030 bronze badges
...
If table exists drop table then create it, if it does not exist just create it
...
answered Nov 22 '13 at 22:55
G-NuggetG-Nugget
7,75611 gold badge2323 silver badges3131 bronze badges
...
How to check if a float value is a whole number
... rounding down the cube root of 12000:
>>> int(12000 ** (1.0/3))
22
>>> 22 ** 3
10648
If you are using Python 3.5 or newer, you can use the math.isclose() function to see if a floating point value is within a configurable margin:
>>> from math import isclose
>>&g...
Aggregate / summarize multiple variables per group (e.g. sum, mean)
...able, sum)
# year month x1 x2
1 2000 1 -80.83405 -224.9540159
2 2000 2 -223.76331 -288.2418017
3 2000 3 -188.83930 -481.5601913
4 2000 4 -197.47797 -473.7137420
5 2000 5 -259.07928 -372.4563522
...
How to draw border around a UILabel?
...
answered Feb 22 '10 at 14:59
VladimirVladimir
165k3535 gold badges377377 silver badges309309 bronze badges
...
CSS Selector that applies to elements with two classes
...
answered Sep 22 '10 at 18:07
BoltClock♦BoltClock
601k141141 gold badges12611261 silver badges12641264 bronze badges
...
Determine if map contains a value for a key?
...
answered Jun 28 '10 at 22:14
AlanAlan
40.2k1616 gold badges106106 silver badges129129 bronze badges
...
Generate a random letter in Python
...
answered May 12 '10 at 22:51
Mark RushakoffMark Rushakoff
214k3737 gold badges383383 silver badges383383 bronze badges
...
How to quit scala 2.11.0 REPL?
...
|
edited Apr 22 '14 at 23:59
answered Apr 22 '14 at 23:51
...
Node.js client for a socket.io server
...
answered May 22 '12 at 14:05
alessioalexalessioalex
55.8k1313 gold badges149149 silver badges118118 bronze badges
...