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- App Inventor 2 离线版 - 清泛IT社区,为创新赋能!
如遇自动更新失败:
将这个路径填入更新包的安装目录处即可。
多媒体组件 · App Inventor 2 中文网
...使用“讯飞语音+”识别引擎,识别率较高,点此下载apk安装。
安装完成后无需设置,当触发需要识别语音时,系统会弹出对话框让你选择使用哪个识别引擎,这时选择“讯飞语音+”,点“始终”就OK了。
当设置...
I want to use CASE statement to update some records in sql server 2005
...WHEN LASTNAME = 'CCC' THEN 'DDD'
WHEN LASTNAME = 'EEE' THEN 'FFF'
ELSE LASTNAME
END
WHERE LASTNAME IN ('AAA', 'CCC', 'EEE')
share
|
...
Making heatmap from pandas DataFrame
...ame
import matplotlib.pyplot as plt
index = ['aaa', 'bbb', 'ccc', 'ddd', 'eee']
columns = ['A', 'B', 'C', 'D']
df = DataFrame(abs(np.random.randn(5, 4)), index=index, columns=columns)
plt.pcolor(df)
plt.yticks(np.arange(0.5, len(df.index), 1), df.index)
plt.xticks(np.arange(0.5, len(df.columns), 1...
What does the CSS rule “clear: both” do?
...to floated elements
body {
font-family: monospace;
background: #EEE;
}
.float-left {
float: left;
width: 60px;
height: 60px;
background: #CEF;
}
.float-right {
float: right;
width: 60px;
height: 60px;
background: #CEF;
}
.clear-none {
clear: none;
backg...
Creating a Radial Menu in CSS
... translate(-$w/2, -$r + $exp);
box-shadow: inset 1px 0 1px #eee;
}
&:after {
border-radius: 0 $w $w 0;
transform: rotate(.5*$n*$angle)
translate($w/2, -$r + $exp);
box-shadow: inset -1px 0 1px #eee;
}
}
li {
overflow: hidden;
...
迅雷发布无限节点CDN 每GB仅0.1元 - 资讯 - 清泛网 - 专注C/C++及内核技术
...应用场景其实是视频网站、下载,还有页游、网游,一个安装包可能都是几个G的下载,比如现在windows10更新时候的下载,这两个技术领域其实占了整个CDN领域80%以上的需求。还有网站类的,也有一些比较大规模的网站,他的CDN...
How can I change the thickness of my tag
...is for instance white (#fff) you can always make your HR very light. Like #eee.
The cross browser safe style for very light horizontal rule would be:
hr
{
background-color: #eee;
border: 0 none;
color: #eee;
height: 1px;
}
And use a CSS file instead of in-line styles. They provid...
BLE协议—广播和扫描 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
访问地址
广播类型
广播数据PDU
AD Stucture
广播响应包
广播间隔
扫描
扫描类别
扫描窗口和间隔
广播和扫描在无线通信中是非常重要的一个技术点。在BLE中,扫描和广播是通信的基础,用户可以直接用扫描...
How to get current time and date in Android
...r a customized format, you can use:
DateFormat df = new SimpleDateFormat("EEE, d MMM yyyy, HH:mm");
String date = df.format(Calendar.getInstance().getTime());
Whereas you can have DateFormat patterns such as:
"yyyy.MM.dd G 'at' HH:mm:ss z" ---- 2001.07.04 AD at 12:08:56 PDT
"hh 'o''clock' a, zzz...