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从Sloodle看三维虚拟学习环境的发展趋势 - 资讯 - 清泛网 - 专注C/C++及内核技术

...平面变为立体、静止变为运动、抽象变为具体、单一变为丰富 ,能加强学生对地理事物规律的感官认识 ,并将知识性、时代性、实用性和趣味性相结合 ,是培养地理学习兴趣的好工具。 (五)小结 上述提到的几种三维虚拟环境...
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Extracting substrings in Go

...ple in action in the Golang playground: https://play.golang.org/p/HrOWH0kl3Ww share | improve this answer | follow | ...
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Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?

...it will use the cached pool, so (Integer) 1 == (Integer) 1 while (Integer) 222 != (Integer) 222 /** * Returns an {@code Integer} instance representing the specified * {@code int} value. If a new {@code Integer} instance is not * required, this method should generally be used in preference to ...
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区块链技术到底是什么鬼,为何被疯炒? - 资讯 - 清泛网 - 专注C/C++及内核技术

...大:从理论上说,围绕区块链这套开源体系能够创造非常丰富的服务和产品,比特币只是区块链巨大应用空间的冰山一角。 (图8:区块链可能的应用) 三、国内相关上市公司 目前,区块链技术基本属于研究领域,但国内外的...
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AppInventor2中文网 + AI助手,用自然语言开发AppInventor应用 · App Inventor 2 中文网

...抱AI,让AI最大化提升们“搭建”App的效率,结合丰富的解决问题方案库,为您快速提供问题的解决方案。不仅如此,还有很多AI可以辅助的场景,们接着往下看~ 功能入口 来个内置的案例:计算器App...
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How can I make a multipart/form-data POST request using Java?

...ient-4.2.4: 423KB httpmime-4.2.4: 26KB httpcore-4.2.4: 222KB commons-codec-1.6: 228KB commons-logging-1.1.1: 60KB Sum: 959KB httpmime-4.2.4: 26KB httpcore-4.2.4: 222KB Sum: 248KB Code: HttpURLConnection connection = (Htt...
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Permission denied (publickey) when deploying heroku code. fatal: The remote end hung up unexpectedly

...w. $ heroku keys === 1 key for joe@example.com ssh-dss AAAAB8NzaC...DVj3R4Ww== joe@workstation.local 2) Build a ~/.ssh/config file: $ sudo vim ~/.ssh/config Edit with this info Host heroku.com Hostname heroku.com Port 22 IdentitiesOnly yes IdentityFile ~/.ssh/ssh-dss # location and name of...
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Colors in JavaScript console

... console.log messages: console.log('%c Oh my heavens! ', 'background: #222; color: #bada55'); The same can be applied for adding multiple CSS to same command. References MDN: Styling console output Chrome: Console API Reference ...
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窝窝与众美联合并 新公司命名“众美窝窝” - 资讯 - 清泛网 - 专注C/C++及内核技术

...的合并,58同城和赶集合并,也有大鳄入股其它垂直O2O,丰富自身平台多样性,如大众点评入股饿了么等。 虽然同是股权运作,但窝窝本次合并众美联,呈现了与以上的行业兼并不同的特点: 首先,窝窝本次合并交易是首个产...
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Auto-center map with multiple markers in Google Maps API v3

...etadeptmetadept 6,95311 gold badge1515 silver badges2222 bronze badges ...