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互联网运营人员必备的12款工具 - 资讯 - 清泛网 - 专注C/C++及内核技术

...客贴是一款简单易用的线上图形设计工具,平台上提供了丰富的图片、模板等素材,通过简单的拖拉拽操作就可以轻松设计出精美的海报、PPT、邀请函、信息图和名片等各类图片。 创客贴解决了大多数人设计图片的痛点,让不...
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How to select rows from a DataFrame based on column values?

...7100 reconstruct 1.000000 1.142838 1.000000 1.355440 1.650270 2.222181 2.294913 3.406735 Turns out, reconstruction isn't worth it past a few hundred rows. spec.T.plot(loglog=True) Functions np.random.seed([3,1415]) d1 = pd.DataFrame(np.random.randint(10, size=(10, 5)), columns...
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开源MQTT网关:EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区,为创新赋能!

...:支持大规模部署高可用性横向可扩展性高性能和高可靠丰富的企业功能率先采用 MQTT over QUIC 缺点:上手复杂难以有效管理 社区情况EMQX 是 GitHub 上评价最高、最活跃的 MQTT Broker 项目,在过去 12 个月里有 11.4K 个 Star 和超过 300...
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手握利器,直面“蓝脸”! ——使用WinDbg抗击系统崩溃 - 操作系统(内核) - ...

...,如不能完好分析请选择“核心内存转储”。为了数据的丰富性,您也可以直接选择“核心内存转储”,但笔者强烈不推荐完全内存转储。) 值得注意的是,为了确保崩溃时自动生成内存转储文件,您可能还...
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MySQL error: key specification without a key length

...-----+ | 226 | Baba | | 223 | Coorg | | 223 | Gelosh | | 222 | Farris | | 222 | Sudbeck | | 221 | Adachi | | 220 | Osgood | | 218 | Neiman | | 218 | Mandell | | 218 | Masada | | 217 | Boudaillier | | 217 | Wendorf | | 216 | Pettis | | 216 |...
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Javascript equivalent of Python's zip function

...nction(array){return array[i]}) }); } // > zip([[1,2],[11,22],[111,222]]) // [[1,11,111],[2,22,222]]] // If you believe the following is a valid return value: // > zip([]) // [] // then you can special-case it, or just do // return arrays.length==0 ? [] : arrays[0].map(...) The ...
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In the shell, what does “ 2>&1 ” mean?

...lobber $ date > $testfile ; cat $testfile bash: /tmp/testNoClobberDate-WW1xi9: cannot overwrite existing file Mon Jan 7 13:18:21 CET 2013 $ date > $testfile ; cat $testfile bash: /tmp/testNoClobberDate-WW1xi9: cannot overwrite existing file Mon Jan 7 13:18:21 CET 2013 Pass through with &g...
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Best way to parseDouble with comma as decimal separator?

...ouping separator and just use French format, a number in Spanish format (1.222.222,33) will be converted to "1 222 222,33", which is not what I want. So thanks! – WesternGun Mar 30 '17 at 14:55 ...
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App Inventor 2 数学代码块 · App Inventor 2 中文网

... ) 返回第一个数字的第二个数字次幂的结果。比如2^3 = 222 = 8 随机整数 (random integer) 返回给定值之间(包含首尾)的随机整数值。参数的顺序不限,也就是 1~100 和 100~1 效果一样。 随机小数 (random fraction) 返回 0 到 1 之...
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A route named “x” is already in the route collection. Route names must be unique. Exception with ASP

... answered Jun 12 '12 at 13:18 Rn222Rn222 2,04711 gold badge1919 silver badges3333 bronze badges ...