使用 XAML 和 C# 构建 Windows 8 Metro 应用程序

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"Metro Revealed Building Windows 8 apps with XAML and C#" 本书籍《Metro Revealed Building Windows 8 apps with XAML and C#》是关于使用 XAML 和 C# 构建 Windows 8 应用程序的指南。该书籍涵盖了 Metro 应用程序的开发、设计和实现的方方面面,旨在帮助开发者快速掌握 Windows 8 应用程序的开发技术。 在本书籍中,作者 Adam Freeman 详细介绍了 Metro 应用程序的开发过程,从基本概念到高级主题,包括数据绑定、页面设计、应用栏、飞出菜单、导航、布局和瓦片设计、应用生命周期和合同等。同时,本书籍还提供了大量的代码示例和实践指导,帮助开发者快速上手 Metro 应用程序的开发。 本书籍的主要内容包括: 1. 获取开始:介绍 Metro 应用程序的基本概念和开发环境,包括 Visual Studio 和 Windows 8 开发工具。 2. 数据、绑定和页面:详细介绍了 Metro 应用程序中的数据绑定和页面设计,包括数据模型、数据绑定、页面导航和数据验证等。 3. 应用栏、飞出菜单和导航:介绍了 Metro 应用程序中的应用栏、飞出菜单和导航设计,包括应用栏的创建和自定义、飞出菜单的设计和实现、导航的设计和优化等。 4. 布局和瓦片设计:介绍了 Metro 应用程序中的布局和瓦片设计,包括布局的基本概念、瓦片设计的原则和实现、布局的优化和调整等。 5. 应用生命周期和合同:详细介绍了 Metro 应用程序的生命周期和合同,包括应用程序的安装、激活、暂停、恢复和卸载等生命周期事件,以及应用程序之间的合同和交互机制。 本书籍《Metro Revealed Building Windows 8 apps with XAML and C#》是 Metro 应用程序开发者的必备指南,为开发者提供了详细的指南和实践指导,帮助开发者快速掌握 Windows 8 应用程序的开发技术。

马丁路德金的"I have a dream"节选存放在"freedom.txt"中: I have a dream that one day this nation will rise up, live up to the true meaning of its creed: “We hold these truths to be self-evident; that all men are created equal.” I have a dream that one day on the red hills of Georgia the sons of former slaves and the sons of former slave-owners will be able to sit down together at the table of br otherhood. I have a dream that one day even the state of Mississippi, a state sweltering with th e heat of injustice, sweltering with the heat of oppression, will be transformed into an oasis of freedom and justice. I have a dream that my four children will one day live in a nation where they will no t be judged by the color if their skin but by the content of their character. I have a dream today. I have a dream that one day down in Alabama with its governor having his lips drippin g with the words of interposition and nullification, one day right down in Alabama li ttle black boys and black girls will be able to join hands with little white boys and white girls as sisters and brothers. I have a dream today. I have a dream that one day every valley shall be exalted, every hill and mountain sh all be made low, the rough places will be made plain, and the crooked places will be made straight, and the glory of the Lord shall be revealed, and all flesh shall see i t together. 编程实现词汇表,计算每一个单词出现的次数,大小写不区分,输出到"dic.txt" 文件保存。

2023-06-01 上传

Heatwaves impose serious impacts on ecosystems, human health, agriculture, and energy consumption. Previous studies have classified heatwaves into independent daytime, independent nighttime, and compound daytime-nighttime types, and examined the long-term changes in the three types. However, the underlying mechanisms associated with the variations in different heatwave types remain poorly understood. Here we present the first investigation of the local physical processes associated with the daytime, nighttime, and compound heatwaves over the global land during 1979–2020. The results show that three heatwave types occur frequently and increasingly in most regions worldwide. Nighttime and compound heatwaves exhibit stronger increases in both frequency (the yearly number of the events) and fraction (the ratio of the yearly number of one heatwave type to the total yearly number of all types) than daytime heatwaves. Composite diagnostic analyses of local meteorological variables suggest that daytime heatwaves are associated with increased solar radiation under dry conditions and reduced cloud cover and humidity under a clear sky. In contrast, nighttime heatwaves are typically accompanied by moist conditions with increases in cloud fraction, humidity, and longwave radiation at night. These synoptic conditions for daytime and nighttime heatwaves are combined to contribute to compound heatwaves. Local divergences and moisture fluxes responsible for different heatwaves are further revealed. Positive moisture divergence anomalies are seen in most land areas for daytime and compound heatwaves, while they mainly appear in low latitudes for nighttime heatwaves. Our research provides a comprehensive understanding of the local mechanisms of different heatwave types, informing future risks and impact assessments.分析语言特征

2023-06-08 上传

n the present research, a hybrid laser polishing technology combining pulsed laser and continuous wave laser was applied to polish the surface of laser directed energy deposition (LDED) Inconel 718 superalloy components. The surface morphology, microstructure evolution and microhardness of the as-fabricated, the single pulsed laser polishing (SPLP) and the hybrid laser polishing (HLP) processed samples were investigated. The results revealed that the as-fabricated sample has a rough surface with sintered powders. In the matrix, the NbC carbide and Cr2Nb based Laves phase array parallel to the build direction and the small γʺ-Ni3Nb particles precipitate in matrix uniformly. The surface roughness of the as-fabricated sample is 15.75 μm which is decreased to 6.14 μm and 0.23 μm by SPLP and HLP processing, respectively. The SPLP processing refines the grains and secondary phase significantly in the remelted layer which is reconstructured with the cellular structure and plenty of substructures. The HLP processing also refines the grain and secondary phase but the secondary phases still exhibit array distribution. In addition, the tangled dislocations pile up along the interface of secondary phases. Compared with the as-fabricated sample, the SPLP processing decreases the surface microhardness but the HLP processing increases the surface microhardness, and the Young's elasticity modulus of surface layer is improved by SPLP and HLP processing to 282 ± 5.21 GPa and 304 ± 5.57 GPa, respectively. 翻译

2023-07-25 上传