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C#对象序列化与反序列化 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术

... list.Clear();//清空列表 fStream.Position = 0;//重置流位置 list = (List<Programmer>)binFormat.Deserialize(fStream);//反序列化对象 foreach (Programmer p in list) { Console.WriteLine(p); } Co...
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Operator overloading in Java

...but an example is worth a thousand arguments. Given m0 as a Matrix and v0, v1, v2, v3, and v4 as Vectors, simply compare how long it takes you to correctly interpret the following mathematical expression m0.transpose().mult(v0.add(v1.mult(v2)).cross(v3)).sub(v4);. Had support for operator overloadin...
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联网 App 第 1 课:连通测试,把一句话存到服务器再读回来(附 .aia 源码)...

...微信、浏览器复制过来的地址常常多带这些。 「求起始位置」等于 1 就表示文字以它开头。 中途验证:填地址点保存,标签显示「正在使用:http://…」;关掉 App 再打开,地址还在。 第三步:保存和读取 ...
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Does “git fetch --tags” include “git fetch”?

...eads/*:refs/remotes/origin/*') fatal: multiple updates for ref 'refs/tags/v1.0.0' not allowed Git 2.24 (Q4 2019) adds another optimization. See commit b7e2d8b (15 Sep 2019) by Masaya Suzuki (draftcode). (Merged by Junio C Hamano -- gitster -- in commit 1d8b0df, 07 Oct 2019) fetch: use oi...
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【App Inventor 2 数据可视化】使用柱状图和饼图收集数据 - App应用开发 - ...

...下载)。把文件下载到你电脑的硬盘上。注意保存文件的位置。进入App Inventor (http://ai2.appinventor.mit.edu),从计算机中导入AIA文件。 2. 查看设计:它有什么用?请做出你的预测。在“Designer组件设计”屏幕中查看组件。你能预测...
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How to shrink the .git folder

...RELEASE-1.4.0 is tip) using git-remote-hg and this yielded a repo of about 100MB. Using git gc --aggressive --prune brought this down to 19MB. – Lekensteyn Apr 25 '13 at 14:42 16 ...
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图表组件 · App Inventor 2 中文网

...。 如果没有为 x 值指定标签,则使用默认值使用(该位置的轴刻度的 x 值)。 CSV字符串标签 指定要设置到图表 x 轴的标签,如果当前是一个带有 x 轴的图表。 标签被指定为逗号分隔(CSV格式)的值字符串,类似的...
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访问图像和声音 · App Inventor 2 中文网

...首页 使用 App Inventor 构建的应用程序可以从三种不同的位置访问声音、图像和视频源: 应用程序资产 “界面设计”视图中显示的标记为 媒体 的源(应用程序的 assets 的一部分)与应用程序打包在一起。 安装你的应用...
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Rename a dictionary key

... In case of renaming all dictionary keys: target_dict = {'k1':'v1', 'k2':'v2', 'k3':'v3'} new_keys = ['k4','k5','k6'] for key,n_key in zip(target_dict.keys(), new_keys): target_dict[n_key] = target_dict.pop(key) ...
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Remove the legend on a matplotlib figure

... As of matplotlib v1.4.0rc4, a remove method has been added to the legend object. Usage: ax.get_legend().remove() or legend = ax.legend(...) ... legend.remove() See here for the commit where this was introduced. ...