大约有 7,000 项符合查询结果(耗时:0.0266秒) [XML]

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Peak detection in a 2D array

...s) pp.show() All you need to do after is use scipy.ndimage.measurements.label on the mask to label all distinct objects. Then you'll be able to play with them individually. Note that the method works well because the background is not noisy. If it were, you would detect a bunch of other unwanted...
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网

...标识符。然后,接收器会过滤掉它感兴趣的设备。 问题:App Inventor 没有内置 UDP,而且我找不到可用的扩展。所以自己动手吧。 注意: 如果智能手机和远程站位于同一个(本地)网络中,则扩展可以完美运行。如果智能手...
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如何查看Oracle用户的SQL执行历史记录? - 数据库(内核) - 清泛网 - 专注C/...

...相关的语句 必须具有DBA 的权限 虽然这条语句很普通 但需要的时候很管用 能够及时查出一个人执行sql语句情况 -------oracle 查看已经执行过的sql 这些存在共享池中的 ---------> select * from v$sqlarea t order by t.LAST_ACTIVE_TIME desc ...
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Python Pandas: Get index of rows which column matches certain value

... df.iloc[i] returns the ith row of df. i does not refer to the index label, i is a 0-based index. In contrast, the attribute index returns actual index labels, not numeric row-indices: df.index[df['BoolCol'] == True].tolist() or equivalently, df.index[df['BoolCol']].tolist() You can see...
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从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

... 图片摘自Mahout in Action 从上图中我们可以看到,算法被模块化的,通过1,2,3,4的过程进行方法调用。 程序代码: public class UserCF { final static int NEIGHBORHOOD_NUM = 2; final static int RECOMMENDER_NUM = 3; public static void main...
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App Inventor 2 LLMAI2Ext 自研拓展:接入DeepSeek、Kimi、通义千问...等国...

...拓展的初衷 App Inventor 2 原生的ChatGPT组件由于国外的,使用起来不太便捷,且各种限制。 如今我们又身处AI浪潮之中,包括很多学校在内的国内用户都有AI结合传统的App来开发具有智能App的需求,因此,必须开发拓...
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Switch statement fall-through…should it be allowed? [closed]

... case 8: result = EVEN_DIGIT; break; } But if you have a case label followed by code that falls through to another case label, I'd pretty much always consider that evil. Perhaps moving the common code to a function and calling from both places would be a better idea. And please note t...
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How to add manifest permission to an application?

...id:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@android:style/Theme.Black.NoTitleBar" > <activity android:name="com.photoeffect.MainActivity" android:label="@string/app_name" > <intent-fil...
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硬盘最神秘的功能,万万想不到 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术

...大家伙,看上去像电磨的磨片~ 还用上了电钻,要干什么呢? 看这个洞,剪得圆不~ 把辐条切断。 用铜丝加固焊牢。 准备易拉罐一个。 剪出一块正方形金属片。 对角折叠。 做成一个小盒盒~ 把...
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ON_COMMAND_RANGE 用法 - C/C++ - 清泛网 - 专注C/C++及内核技术

ON_COMMAND_RANGE 用法申明消息宏 + 回调函数模型,其他没什么好解释的。BEGIN_MESSAGE_MAP(CxxDialog, CDialog) ON_COMMAND_RANGE(IDC_BUTTON_1, IDC_BUTTON_ALL, OnButtonClick) END_MESSAGE_MAP() afx_msg void OnButtonClick(UINT nID);ON_COMMAND_RANGE, MFC