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    一张图片宽高是571*799 想把这张图片画到白色背景上 宽度550 高度自适应 高度计算的也没错 可是为什么画出来的这张图片比例不对呢 <image class="canvas3" style=" ... fail: function(res) { console.log(res); wx.hideLoading(); } }); }, 2000);...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    哪位了解这个...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    为了定位程序运行中出现的内存问题,打算移植valgrind工具去分析原因 在移植过程中出现了一些问题 请教各位大神 我的操作步骤如下: 1.从官网下载valgrind,放到ubuntu去编译;使用的是单板上的交叉工具 ... 过strip去掉了debug调试信息的relaese版的库; 4.那我该如何去移植debug版本的libc库呢?或者该如何去处理呢?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    When runs this program ,compiler gives a error saying that "varA(in class C)does not name a type".what's the wrong with me? ... SetPrvA1(30); cout<<a1.show()<<endl; c1.show(); }...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    近期在研究 Oauth2,由于 Security 有点遗忘,所以重新看了下,在阅读源码发现 Spring Security 中的hasAuthority()和hasRole()方法最终指向了同一个方法hasAnyAuthorityName() 这点在以前被忽略,Role表示 ... ,且网上关于这个内容的我并未能够找到,所以想请教下各位这些问题,感谢解惑 ...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I scaled my statefulset up to 4, and when scaling down to 1, I saw that I still have 4 persistent volumes ... -8c5f-dff2843b693f 7Gi RWO Delete Bound default/data-3 default 4h3m...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    We have setup a ignite cluster 2.9.0 with native persistence enabled in AKS. We wanted to evaluate apache ... gb Jmeter requests - 3 concurrent threads continuosly for 5 minutes...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    请问:原书解答中 This adds m propositions {E}i at the main level.到底啥意思?(见附件中划红线那句) 这使得主层增加了m个{E}i.(按我理解,应该是一次操作增加了k个啊.) 这使得主层由m个g组成的{E}i的个数增加了.(难道是这个意思?)...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    springboot 集成dubbo,自定义过滤器无法被dubbo加载到 代码 1.filter @Activate(group = {CommonConstants.PROVIDER, CommonConstants.CONSUMER}, order = - ... .web.filter.LogFilter debug 还请路过大神不吝赐教,多谢多谢...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    如上图,在timeType中设置类的样式,不能生效,不知道为什么...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to throw exception when unsubscribing from event. .NET Framework 4.8 I tried this: var sFE = NSubstitute. ... be null. Parameter name: handler' Please can you help me?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    So first of all I want to use my JEditorPane as a "note field" and I want it to save the text, so I still can ... (Paths.get(fileName)))) { return ois.readObject(); } } }...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Hi I am having problem with placing Right header Icon, please advise how to solve it. I got error " variable - navigation" not ... 16, paddingRight: 16, marginRight: 16 }} /> ) } }...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    我有很多个仓库,自然会有很多 .drone.yml 文件,我想把它们统一放到一个仓库中,请问该如何做 ? 我在 drone 官方的论坛里得到一个回答 我们提供全面的文档和一个入门项目,以创建可用于从 ... ://docs.drone.io/extensions/configuration/ 但是根据这个我并不能做到我想要的结果,请问大家谁知道怎么做?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    规则: 找出指定长度的重复的字符串, 未匹配则返回空字符串 function getSameStr(str, n) { // } const res = getSameStr('71235912304', 3) console.log(res) // '123' 希望得到结果: '123'...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have an ActionMethod [HttpGet] [Route("ControllerName/IsUniqueNotificationName/{notificationName}")] public IActionResult ... } Could someone help me with this issuw...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    有一个html文件,里面引用了一个谷歌的在线文件,但内网无法访问,所以会阻塞页面较长时间才返回结果,理论上html文件中不应该有出现引用其他域的文件,因为某些原因无法彻底修正。 期望有个方案,统一设置代理,将该资源的访问指向一个可用或者内网中的地址。或者用nodejs在服务器上起个服务将资源重定向。...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am new at using Sonarqube and I have an issue that maybe you can help with. I am working in a development ... error: wait for JVM process failed Can someone please help me?...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to deploy my Flutter app to GitHub Pages. App runs fine with flutter run -d chrome and builds ... pages link: https://learyjk.github.io/superpacecalcweb/ Thank you!...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    外层的dom设置了display:none,里面的的插值{{XXX}}都没问题,但是@click @change 都是失效了,请问这是什么问题,感谢,有其他思路解决吗 <div class="tt" style=" ... /form> <a class="sub-tt" @click="submitAfterForm()">下一步</a> </div>...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    这是一道题,实现console.log(a == 2 && a === 3 && a == 4)为true: 用Object.defineProperty的方式去实现不难,然后不都说可以用Proxy去实现Object.defineProperty的功能 ... ) console.log(a == 2 && a === 3 && a == 4) //true...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.3k views
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    我的理解是有两种情况 1.当input为受控组件,即input的渲染依赖于state的变化, 用value绑定state (输入 => 改变state => 重新渲染) 2.当input为非受控组件,渲染不依赖state,是直接对dom的输入 (输入 ... 用非受控组件,渲染减少了,但是无法阻止用户输入一些你想过滤的字符 请高手指定一下该如何处理~...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    使用uni-app 开发,利用Vue特性给组件绑定key ,在绑定的key发生变化是,对应组件动态更新,app 和 h5端使用没有问题,微信小程序端key值变化,组件不更新,这个问题如何解决?...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    var bannerStatus = 1; var bannerTimer = 3000; window.onload = function() { bannerLoop(); } var startBannerLoop = setInterval(function() ... premium</p> <p>$12.99 - gold</p> </div>...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    在node项目中,启动项目npm start,node-excel-export插件报错,现在mongodb数据库是空的没有的数据,报错和这个有关系吗?...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    有没有比较好的方法吧图一的数据装换成图二的样子,规则是同名的key和value合并,组装成父子级的关系,而且leve可能有很多层可以嵌套很多层,请问下有比较好的方法吗?...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.6k views
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    i am trying to clean conda by running: conda clean --all However, it gives the following warning: WARNING: C:Usersmyname. ... get a bit closer to getting my conda to work again....
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    index.js 里主动改变的数据怎么赋值给vue文件里面的变量??? 除了使用vuex、sessionStorage及localStorage 还有没有别的好办法.......
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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