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2025年2月2日签到记录贴 - 签到区 - 清泛IT社区，为创新赋能！
...动生成的,如果您还未签到,请点此进行签到的操作. 我在 2025-02-02 08:16 完成签到,是今天第一个签到的用户,获得随机奖励 小红花 5,另外我还额外获得了 小红花 10.我今天最想说:「该会员没有填写今日想说内容.」. 我在 2025-02-02 11:26...
【解决】App Inventor 2 中文版服务启动超时，问题排查 - App Inventor 2 ...
...动检查，目前有技术细节没解决，后续会继续研究。
2、虽然概率小些，但也遇到过几例。开始菜单， cmd，打开 dos 窗口，输入 netstat，如果报错命令找不到，就意味着系统的环境变量被破坏，导致无法启动软件。
解决方法...
Annotating text on individual facet in ggplot2
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edited Aug 9 '12 at 19:24
Andy
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answered Aug 9 '12 a...
What do numbers using 0x notation mean?
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112
Literals that start with 0x are hexadecimal integers. (base 16)
The number 0x6400 is 25600.
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How do I remove duplicate items from an array in Perl?
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edited Jun 21 '14 at 1:39
Miller
33.9k44 gold badges3232 silver badges5555 bronze badges
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How to compare versions in Ruby?
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234
Gem::Version.new('0.4.1') > Gem::Version.new('0.10.1')
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Convert datetime object to a String of date only in Python
...o help you format your date.
E.g.,
import datetime
t = datetime.datetime(2012, 2, 23, 0, 0)
t.strftime('%m/%d/%Y')
will yield:
'02/23/2012'
More information about formatting see here
share
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Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
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277
Try to start the MySQL server:
mysql.server start
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PHP Function with Optional Parameters
I've written a PHP function that can accepts 10 parameters, but only 2 are required. Sometimes, I want to define the eighth parameter, but I don't want to type in empty strings for each of the parameters until I reach the eighth.
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What is the difference between “text” and new String(“text”)?
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12 Answers
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