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错误解决:Xcode not set up properly. You may need to confirm the licens...
...
Xcode -> Preferences -> Locations - > Command Line Tools
#设置好xcode的安装位置
或
1
sudo -i xcode-select -switch /Applications/Xcode6-Beta6.app/Contents/Developer
根据具体路径：
（sudo xcode-...
Win7禁用休眠 减少C盘容量占用 - 脚本技术 - 清泛IT社区，为创新赋能！
...容量占用常见的还有：将虚拟内存位置改到C盘以外。
设置完成后，需要重启计算机方可生效。
傻瓜式终极解决方案：使用CCleaner工具进行清理。http://www.tsingfun.com/html/201 ... 5343_pro_green.html
mongodb, replicates and error: { “$err” : “not master and slaveOk=f...
出现这个错误的原因是在从库上执行命令导致，默认情况下只有主库可以执行命令。
当然可以通过设置使得从库也能执行命令，具体参见：
http://stackoverflow.com/questions/8990158/mongodb-replicates-and-error-err-not-master-and-slaveok-false-code
AI 伴侣报错：Error 908: The permission CAMERA has been denied. Please ...
解决方法：手机设置中 开启 AI伴侣的照相机权限。
蓝牙客户端组件：为什么不显示蓝牙设备列表？为啥蓝牙列表为空 - App Inven...
转会员提问：蓝牙客户端组件：为什么不显示蓝牙设备列表？为啥蓝牙列表为空？
解决方法：设置中打开 app 的“附近设备权限”即可。
What does value & 0xff do in Java?
...
It help to reduce lot of codes. It is occasionally used in RGB values which consist of 8bits.
where 0xff means 24(0's ) and 8(1's) like 00000000 00000000 00000000 11111111
It effectively masks the variable so it leaves only the value in the last 8 bits, and ignores all the r...
Automatically plot different colored lines
...hem to all be different colors. I have a kludged solution using a string 'rgbcmyk' and stepping through it for each separate plot, but I start having duplicates after 7 iterations. Is there an easier/more efficient way to do this, and with more color options?
...
Change / Add syntax highlighting for a language in Sublime 2/3
...ese color styles. Possibly more.
hsla = hue, saturation, lightness, alpha
rgba = red, green, blue, alpha
hsla(151, 100%, 41%, 1)
- last param is the alpha level (transparency) 1 = opaque, 0.5 = half-transparent, 0 = full-transparent
hsl(151, 100%, 41%) - no alpha channel
rgba(0, 209, 108, 1) - ...
PHP: exceptions vs errors?
...k;
}
table.thead tr {
background : rgb(240,240,240);
}
table.trace tr.odd {
background : white;
}
table.trace tr.even {
background : rgb(250,250,250);
}
tab...
Drawing an SVG file on a HTML5 canvas
...
<svg height="40">
<rect width="40" height="40" style="fill:rgb(255,0,255);" />
<image xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAEX0lEQVQ4jUWUyW6cVRCFv7r3/kO3u912nNgZgESAAgGBCJgFgxhW7FkgxAbxMLwBEmIRITbsQAgxCEUiSIBAYIY4g1EmYjuDp457+Lv7n+4...