我在vchart官网上看到了这个demo："https://www.visactor.io/vchart/demo/gauge-chart/clock" (https://link.segmentfault.com/?enc=%2B16M08j0WCkreQgnp0HcKw%3D%3D.xOXzlB2wEkiO5w4uVkFdwdjopshvmYVmceBKvUjMyOhv6E%2BLI%2FnNmZjOwmKN%2FK9GiQE5NK4v3zfTR1%2BXFssZSQ%3D%3D) 它看起来像是仪表图的变种。现在我需要将常规仪表图的背景更改为类似的样式，将背景分段并设置圆角。我该怎么办？

调 API 呗。 去文档里找你相应的服务的 OpenAPI，比如： «"https://help.aliyun.com/zh/cms/developer-reference/using-> openapi" (https://link.segmentfault.com/?enc=EGG8iz3GaSJn2GsbyrRu%2FA%3D%3D.Bo%2BUCJcW8hLOHULtkTq7v7H6XRM7wD35jFufAyoMHGP5trGRIn7HiskBMHpBWedHwBJWvpvs9SdroC1wuhKew0tUlbQdCXBmmt%2BsciNU34k%3D)»

yum install -y autoconf "autoreconf"命令由"autoconf"包提供

gui.add(params, 'colorSpace', { sRGB: 'sRGB', Linear: 'Linear' }).onChange((val) => { texture.dispose(); // 释放旧纹理 texture = textureLoader.load('./textures/your_texture.jpg', function(t) { if (val === 'sRGB') { t.encoding = THREE.sRGBEncoding; } else { t.encoding = THREE.LinearEncoding; } }); material.map = texture; // 更新材质的纹理 material.needsUpdate = true; // 标记材质需要更新 });

我想用表格实现一个简单的热力图，即单元格背景色的深浅由单元格的数值来决定，请问有什么比较简单的实现方式？ "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241225/6624cd29e9f261df199d7061d6010bdc.png)

这个函数 addToResult 接受两个参数：要添加的数据数组 dataArray 和要添加的数据数量 dataCount。它会将数据填充到 group 数组的 children 数组中，保证数组的长度与 count 属性相符。在填充完成后，函数将返回填充好的结果数组。 let group = [ { label: "a", count: 25 }, { label: "b", count: 3 }, { label: "c", count: 4 }, ]; function addToResult(dataArray, dataCount) { let result = JSON.parse(JSON.stringify(group)); result.forEach((item) => { item.children = []; }); let totalDataToAdd = dataCount; let index = 0; while (totalDataToAdd > 0) { if (index >= result.length) { index = 0; } let availableSpace = result[index].count - result[index].children.length; if (availableSpace > 0) { let dataToAdd = Math.min(availableSpace, totalDataToAdd); totalDataToAdd -= dataToAdd; for (let i = 0; i < dataToAdd; i++) { result[index].children.push(dataArray.shift()); } } index++; } return result; } const dataToPush = new Array(10).fill("data"); let result = addToResult(dataToPush, 10); console.log("result after pushing 10 items:", result); result = addToResult(dataToPush, 10); console.log("result after pushing another 10 items:", result); result = addToResult(dataToPush, 10); console.log("result after pushing another 10 items:", result); result = addToResult(dataToPush, 2); console.log("result after pushing another 2 items:", result);

你少了对{}吧 const genDropdownItems = (key: string | number): MenuProps["items"] => { const items: MenuProps["items"] = [ { label: { console.log('收藏: ', key) }}>收藏, key: '0', }, { label: 2nd menu item, key: '1', }, { type: 'divider', }, { label: '3rd menu item', key: '3', }, ]; //return items return { items } }

我按照这里的 "https://github.com/nodesource/distributions" 方式在 "ubuntu22.04" 上安装 nodejs 和 npm "图片.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241219/e8308e838c5c0606f7ba70bab84cc1b0.png) 但是遇到了问题，当我执行下面的命令 NODE_MAJOR=18 echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list 我发现 NODE_MAJOR 并没有填充 pon@T4GPU:~/code/me/reflex_example$ cat /etc/apt/sources.list.d/nodesource.list deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_.x nodistro main 可以看到，结果不是 "https://deb.nodesource.com/node_18.x" 而是 "https://deb.nodesource.com/node_.x" «我用的是 bash» 为什么把 NODE_MAJOR=18 加在命令开头却不行，理论上，这也是一种正确传递环境变量的方式之一? *** 加个分号也可以, 但是在使用 python 的时候，是可以不加 ";" pon@T4GPU:~/code/me/reflex_example$ NODE_MAJOR=18; echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | sudo tee /etc/apt/sources.list.d/nodesource.list deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_18.x nodistro main 难道是因为，不加分号，只对该 shell 的子进程可见，shell 本身不可见？ *** 比如我写一个 python 程序 "main.py" import os print(os.environ['RUN_MODE']) 然后调用 pon@T4GPU:~/code/me/reflex_example$ python main.py Traceback (most recent call last): File "/home/pon/code/me/reflex_example/main.py", line 2, in print(os.environ['RUN_MODE']) ~~~~~~~~~~^^^^^^^^^^^^ File "", line 679, in __getitem__ KeyError: 'RUN_MODE' pon@T4GPU:~/code/me/reflex_example$ RUN_MODE=prd python main.py prd 可以看到直接 "python main.py" 会报错，但是 "RUN_MODE=prd python main.py" 是正常的

起了一个 mysql 的 docker 容器 version: "3" services: mysql8: container_name: mysql8 image: mysql:8 restart: always ports: - "3306:3306" environment: - MYSQL_ROOT_PASSWORD=123456 volumes: - ./volumes/:/var/lib/mysql - ./my-custom.cnf:/etc/mysql/conf.d/my-custom.cnf 然后使用 htop 看到 mysql8 容器占用的 res 内存是 556MB "图片.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241218/f88888161b2058236e8c1e3757b0fd3a.png) 使用 docker stats 看到的内存使用量是 739.5MB，和 htop 不一致 "图片.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241218/3214dec44fe20fbba35a236bd351f0a9.png) 使用 "docker 的 python sdk" (https://link.segmentfault.com/?enc=ksnkIxkjQttNM5iwRCd84g%3D%3D.l2VSPz5X9oZ8W8VtJAxCifOaRz2LnKFoeCxmCEyXDBAiaTpEMV3TWtA9iy%2BoTw8X) 读取 mysql8 容器的信息 代码如下 from typing import List, Dict, Optional from concurrent.futures.thread import ThreadPoolExecutor import click import docker from rich.console import Console from docker.models.containers import Container import json def get_container_info(container: Container): short_id: str = container.short_id status: str = container.attrs['State']['Status'] name: str = container.attrs['Name'] from docker.models.images import Image image: Image = container.image image_name = image.tags[0] if image.tags else image.short_id container_stats: Dict = container.stats(decode=True).__next__() print(json.dumps(container_stats,indent=4)) client = docker.from_env() container = client.containers.get('c50ca07d3d41') get_container_info(container) 输出内容: { "read": "2023-10-03T03:27:20.913142192Z", "preread": "0001-01-01T00:00:00Z", "pids_stats": { "current": 47, "limit": 33438 }, "blkio_stats": { "io_service_bytes_recursive": [ { "major": 259, "minor": 0, "op": "read", "value": 301391872 }, { "major": 259, "minor": 0, "op": "write", "value": 1556733952 } ], "io_serviced_recursive": null, "io_queue_recursive": null, "io_service_time_recursive": null, "io_wait_time_recursive": null, "io_merged_recursive": null, "io_time_recursive": null, "sectors_recursive": null }, "num_procs": 0, "storage_stats": {}, "cpu_stats": { "cpu_usage": { "total_usage": 114408426000, "usage_in_kernelmode": 37930579000, "usage_in_usermode": 76477847000 }, "system_cpu_usage": 105739260000000, "online_cpus": 16, "throttling_data": { "periods": 0, "throttled_periods": 0, "throttled_time": 0 } }, "precpu_stats": { "cpu_usage": { "total_usage": 0, "usage_in_kernelmode": 0, "usage_in_usermode": 0 }, "throttling_data": { "periods": 0, "throttled_periods": 0, "throttled_time": 0 } }, "memory_stats": { "usage": 1346535424, "stats": { "active_anon": 4096, "active_file": 208646144, "anon": 546168832, "anon_thp": 0, "file": 779718656, "file_dirty": 0, "file_mapped": 36380672, "file_writeback": 0, "inactive_anon": 546164736, "inactive_file": 571072512, "kernel_stack": 770048, "pgactivate": 50248, "pgdeactivate": 0, "pgfault": 213604, "pglazyfree": 0, "pglazyfreed": 0, "pgmajfault": 453, "pgrefill": 0, "pgscan": 0, "pgsteal": 0, "shmem": 0, "slab": 17898776, "slab_reclaimable": 17314312, "slab_unreclaimable": 584464, "sock": 0, "thp_collapse_alloc": 0, "thp_fault_alloc": 0, "unevictable": 0, "workingset_activate": 0, "workingset_nodereclaim": 0, "workingset_refault": 0 }, "limit": 29296934912 }, "name": "/mysql8", "id": "c50ca07d3d41b26b9fca21bb90b942919066352c0f1866750afb7f2ab611d5ea", "networks": { "eth0": { "rx_bytes": 169903746, "rx_packets": 423759, "rx_errors": 0, "rx_dropped": 0, "tx_bytes": 18029112, "tx_packets": 228139, "tx_errors": 0, "tx_dropped": 0 } } } 可以看到 memory_stats 的 usage 是 1346535424，换算一下就是 1346535424/1024/1024/1024=1.25GB，这个结果和 htop 和 docker stats 都不一样 所以有两个问题： 问题一：看来需要组合计算 memory_stats 下面的 stats 中的某些参数才能获取和 htop 和 docker stats 一致的结果，但是我不知道该用哪些参数 问题二：为什么 htop 和 docker stats 的结果不一样

直接单独部署，然后搞个 "iframe" 嵌套进来就行了吧。

看到一个类似的，你参考下： "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241210/f1b7aca77c4a5bd5499cb1d3d3f55a65.png) "https://www.makeapie.cn/echarts_content/x1yYTM_Sy6.html" (https://link.segmentfault.com/?enc=2Je30MchaEa8aJEihv8Mbw%3D%3D.XAE6Ch%2BdeH4hc0zsoLvae3SZtDTwF32in8%2F114NTsvHdEooI%2BkeTZJMr83CtPK6%2B6UEuHXrbB%2BwKCS6z27Q8nw%3D%3D)

根据题干补充, 上面的条形进度条需要用JS写用二楼的写法就行了, 主要是根据进度修改"-webkit-mask-image: linear-gradient(to right, #000000 0%, transparent);"中"transparent"的值: "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241209/034e23a6c1138ce8182da9f1520892a3.png) 修改方法与原回答类似, 动态修改"style"就可以了: `mask-image: linear-gradient(to right, #000000 0%, transparent ${21}%)` 小箭头用绝对定位然后配合transform或者left都行: div { width: 200px; height: 20px; background-color: aquamarine; position: relative; } span { position: absolute; } 箭头 const SPAN = document.querySelector('span') // 下面二选一 // SPAN.style.left = '50%' SPAN.style.transform = `translateX(${179}px)` 小箭头直接与渐变的条纹带直接用图片就可以了

做不到，让老板给配 Mac 电脑吧。 其实二手 Mac mini 也挺便宜的。

能打印出来? "!."我还是第一次见

我有个需求，需要微信关闭后，小程序继续执行某些程序，并且可以放音乐和震动，请问支持吗？

"image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241129/7c52659e58011f1f0235a8e473529381.png) 在应用中，我需要将该正则放到键值对并进行 "JSON.stringify"，但这一做法会导致正则中的 "\u4e00-\u9fa5" 发生乱码，尝试了多种方法，但当赋值时就已经发生变化，有没有大佬知道要怎么解决？ // 当 presetRegs 作为下拉选项时，value 就已经乱码了 const presetRegs = [{ label: "文字限制(中文)", value: "/^(?:[\u4e00-\u9fa5·]{2,16})$/" }]; // 最终表单中的 expression 字段拿到的也是乱码值 const form = reactive({ ..., options: { rules: [ { expression: "/^(?:[一-龥·]{2,16})$/", errorMsg: "写个中文吧" } ] } }); form.options = JSON.stringify(form.options); // post form

可以把getInitialData的请求放在webwork中进行请求,这样就不会阻止页面渲染了 官方文档"Web_Workers_API" (https://link.segmentfault.com/?enc=4%2FKtv9F0nMkQTZlg9kv77w%3D%3D.rY7%2B2wDjaeZDQnq6bipFxgW4LtW22s8Rr%2FcmAqc5Sx%2FOQKS2aJR9FsUtKK1UKIKNkMiuHA542cvK6XQ6RhiEOXvvpwnVlLaJmk46rSi%2FXKIDrRfqVc%2BeMpAcsKDGsxIQ) 网上搜的文档"掘金webwork" (https://link.segmentfault.com/?enc=1fsqRRw0DKDPqlqmS6992A%3D%3D.tmgN5zKlw7xHFxCfxOm2M6z6MkiegoAPRNIHKkkhuxhz2KuPRmlmqCVI3%2Bvnc4EB) «"链接2" (https://link.segmentfault.com/?enc=nOLiprrWlz4WfstdOz3b1w%3D%3D.9YUYBdP7nqSVbzG6VkC1sQe9Gw3ZxP3P614NKaG6vr%2BJ8%2BrgOgkxxoMQOdzZLa5T)» 就是上网搜一下就行,这个很简单

可以试下a-calc "https://github.com/Autumn-one/a-calc-old/blob/main/README_ZH.md" (https://link.segmentfault.com/?enc=fndHTC63Ti1UGt%2Fl8xm9uw%3D%3D.UEzgrdj0NBvexpgpUb9O8pgAUfNUoZYnrvvmgag6WqM5dGzM2SThMdkaUhSZd1Mkm2Ntz0peY6gvUHIm4G1NMg%3D%3D) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241127/779e3bd6a8fbc0c89644fa790aad1686.png)

子问题：k8s pod OOM 原因分析 如何判断 k8s 的 OOMKilled 是因为 node 内存不足从而 kill pod，还是因为 pod 本身申请的内存超过了 limt 声明限制而被kill呢？ 能不能直接通过 kubectl describe 看出来？ «从下面的 describe 子命令的输出信息，只能看出 OOMKilled，但是看不出是 pod 自身导致的 OOMKilled，还是外部原因导致的 OOMKilled» ─➤ kb describe -n xxxxx pod image-vector-api-server-prod-5fffcd4884-j9447 Name: image-vector-api-server-prod-5fffcd4884-j9447 Namespace: mediawise Priority: 0 Service Account: default Node: cn-hangzhou.xxxxx/xxxx Start Time: Wed, 01 Nov 2023 17:25:54 +0800 Labels: app=image-vector-api pod-template-hash=5fffcd4884 Annotations: kubernetes.io/psp: ack.privileged Status: Running IP: xxxxx IPs: IP: xxxxx Controlled By: ReplicaSet/image-vector-api-server-prod-5fffcd4884 Containers: image-vector-api: Container ID: docker://78dc88a880d769d5cb4a553672d8a4b4a0b69b720fcbf9380096a77d279c5645 Image: registry-vpc.cn-xxxx.xxxx.com/xxx-cn/image-vector:master-xxxxxx Image ID: docker-pullable://registry-vpc.cn-hangzhou.aliyuncs.com/xxx-cn/image-vector@sha256:058c43265845a975d7cc537911ddcc203fa26f608714fe8b388d5dfd1eb02d92 Port: 9205/TCP Host Port: 0/TCP Command: python api.py State: Running Started: Wed, 01 Nov 2023 18:35:49 +0800 Last State: Terminated Reason: OOMKilled Exit Code: 137 Started: Wed, 01 Nov 2023 18:25:34 +0800 Finished: Wed, 01 Nov 2023 18:35:47 +0800 Ready: True Restart Count: 8 Limits: cpu: 2 memory: 2000Mi Requests: cpu: 10m memory: 1000Mi Liveness: http-get http://:9205/ delay=60s timeout=1s period=30s #success=1 #failure=3 Readiness: http-get http://:9205/ delay=60s timeout=1s period=30s #success=1 #failure=3 Environment: Mounts: /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-2kwj9 (ro) Conditions: Type Status Initialized True Ready True ContainersReady True PodScheduled True Volumes: kube-api-access-2kwj9: Type: Projected (a volume that contains injected data from multiple sources) TokenExpirationSeconds: 3607 ConfigMapName: kube-root-ca.crt ConfigMapOptional: DownwardAPI: true QoS Class: Burstable Node-Selectors: Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s node.kubernetes.io/unreachable:NoExecute op=Exists for 300s Events: «想在不引入外部工具的情况下（比如 prometheus），分析这种问题» *** 我去 kubernetes 那里提了这个问题： "https://discuss.kubernetes.io/t/how-can-we-tell-if-the-oomkil..." (https://link.segmentfault.com/?enc=rowgIdQgr9LuWqNIw1dV%2FA%3D%3D.8MxXXgtQPYPYlxg3TaT1vfJCUSBYULeveueD2FcgG7ytvIldhXAdlpgxn%2FCxV8x9Y8jpx%2FAg8oY6hlFWelne792%2BEdFUA%2BFOEhD0Di1V9MQI4hjxRBMXz8sW19WiO2pb0Nx%2BS6Dad4%2BjkAV6362bO9gSM1c6%2FnpzvLywz5qp%2B%2BSXlc4FztPp7ZeVZ6uiqZO2RO4dMBWzdrzUGj9Pwvy4ectiffbBMMbKTOE0%2F4lDcPcXmtSqLZmVenq06hzZDoo4kkxICgurKtIILQw9WW4oKwDsglRKF9yXLdMgvGM2eJod0JR7ES7oiQ1jJlev5X5BaqDg5cSrIyhoMuBwPAAfFg%3D%3D)

点击菜单栏 View -> Appearance -> Navigation Bar取消勾选试试

// 目前需要这样的结构 interface IChildLine { isLine: boolean points: number[] } interface IChildCircle { isCircle: boolean points: number[] } interface ITab{ children:(IChildCircle | IChildLine)[] } // 也就是说 ITab 的 children 要么是 isCircle 要么是 isLine ,在一个对象里不能同时存在 我感觉有优化空间,有大佬知道怎么优化吗?

小程序request合法域名添加了吗？

// 假设 file 是一个 File 对象 const file = ...; // 文件对象 const appendString = '你要添加的内容'; // 把文件转成 Blob 对象 const blob = new Blob([file, appendString], { type: file.type }); // 换回 File 对象 const newFile = new File([blob], file.name, { type: file.type });

两千条都太多了。虚拟列表，展示一屏幕+上下半屏幕。 左侧会话列表用定高列表，右侧消息列表用不定高列表。 不定高列表，可以把图片的宽高做持久化，体验会更好 *** 可以看一下虚拟列表就是标准的大数据处理方案。十万条都没问题（当然真实的消息列表 dom 比这个会更复杂，但是真实 dom 也不会多太多） "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241121/b19b6edab449cae47b27ea1da0dc503b.png) *** "https://github.com/react-component/virtual-list" (https://link.segmentfault.com/?enc=jFwsoj%2B1esjpdae8jEPSmQ%3D%3D.gaUT2NdJ8KokHavDqkClcKUbnVMw5QuV9Agrp56WJz2K2R7mNi22hYm2KzySH%2BHu) *** 我之前写过的一些 im 相关的前端问题，可以关注一下 "https://segmentfault.com/q/1010000043560447" (https://segmentfault.com/q/1010000043560447) ， 如果有我没提到的可以再问我。 "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/images/20241121/0e1f28dca0fa442e4e744ce96ee78b5c.png)

我只写一个主天线的示例，经过验证可以，你就续写下去就可以: const RtkForm = reactive({ mainTx: "", x: "", y: "", z: "", //... }) function isIntegerOrDecimal(str) { let num = parseFloat(str); return Number.isInteger(num) || Number.isFinite(num); } const checkNumber = (rule, value, callback) => { if (!RtkForm.x || !isIntegerOrDecimal(RtkForm.x)) { callback(new Error('第一个框请输入整数或小数')); } else if (!RtkForm.y || !isIntegerOrDecimal(RtkForm.x)) { callback(new Error('第二个框请输入整数或小数')); } else if (!RtkForm.z || !isIntegerOrDecimal(RtkForm.z)) { callback(new Error('第三个框请输入整数或小数')); } else { callback(); } } 更新: 我发现这样写更简单粗暴,只不过没提示了 (RtkForm.x = v.replace(/[^\d.]/g, ''))" v-model="RtkForm.x" /> (RtkForm.y = v.replace(/[^\d.]/g, ''))" v-model="RtkForm.y" /> (RtkForm.z = v.replace(/[^\d.]/g, ''))" v-model="RtkForm.z" />

想要在电脑 chrome 以指定 Mozilla 来测试指定网页 目前知道对方的 agent 数据如下 Mozilla/5.0 (Linux; U; Android 6.0.1; zh-cn; JDN-W09 Build/HuaweiMediaPad) AppleWebKit/537.36 (KHTML, like Gecko)Version/4.0 Chrome/37.0.0.0 MQQBrowser/6.0 Mobile Safari/537.36 想要在 devtool 模式改成 "Mozilla/5.0" 或是 "Chrome/37" 环境来测试兼容的情况。

请问如何自定义alert UI，或是有外挂能支持阻断程序运行效果 (能兼容IE11) 目前用过几个套件，有无法兼容IE11，有的无法实现alert时阻断程序运行，按确认后，其他JS才能继续运行效果 如，用alert用户可以看到提示字，知道自己完成送出 alert('资料确认完成'); windows.reload() 用其他套件会一闪而过，直接reload

a.href = location.origin + '/static/fileTemplate.xlsx'; 这样部署到服务器也可以下载文件 这样试试

"https://cn.vuejs.org/guide/essentials/reactivity-fundamentals..." (https://link.segmentfault.com/?enc=e%2FuncrWeAl7tU%2FmwWwPqpg%3D%3D.7Qae9c%2BSkAYB6gEPlsM6nYV%2F6Q2Oiu6V%2BPeDlhcTTmwB0DyBICxddOG9zm5BqLYU4Bq19fwEz7rD3MoTySG60JQr8HJQ7ZCZbovoNJbRZJXjgzmnXIwrn7LthTi157YM) "https://play.vuejs.org/#eNp9UcFuwjAM/ZUoF4qoShE3VJC2iQM7bNO2Y..." (https://link.segmentfault.com/?enc=5%2Fu%2Ff62ruoKywQXF1yBX%2FA%3D%3D.Hp%2BiD3d4dy%2FvLQFsEjJkJltwEyBVlp6nC24d9zkWWsdcavuBNK%2BvwMuJ1%2B342yY%2BxoQdvUBktqGeV7lqfaeHXkZqntIPYkhqLOyXxEvBOh9pfuyFGfuiOMVRUQI7DiTeOBoMNaeKtCxist4QEuJ2IxcaIjBDzZe9t21g3bT3i5Zsx9QEZE6KSKRjRh8LwHCgvnlvbOf%2FOFYSJ4QhJ5MChWu%2F3JvHAmKiQOQWFZFVs83HwApPm1jEbV%2B%2BzAwx1n%2F4JrF1Hs4PrNLbC9RHAmz7BZvS%2Bwj4PURXybh4CDFEe2moiCMMyuAZVIh4QsDQ2UJ%2FyAVyVLAzy2EV3InRAQBVmmiA6MlWVg1CkeGzbUJtvYLL%2FRnCQ9ABuc4C%2FhfiS6Jzv9HsbM9mO1k25L0iuSdWDpnz7XEbvKZvUM5mdn250a4ahWDk6USzUNVZxWIA5foMTu3o0kOir44GMqH%2B1EDAacKrYy%2Ftp5G2a50aHsPc9MvaBTwkm2ujPg7ftngBBMyA2O2d3acqS%2Fjvk3UA9LrcJsAUilXGbzloevmyekLKDKWXqC%2B8QfJmehKyzbJeguK1jFlJ8JfuQePq4t%2BXa%2BnlUIFwJrHfMLEFn9tPm6Wgq8tR0w4HASpuZ5IpmgwyFUV%2B) 如代码所示，解构丢失响应性连接似乎并不只是reactive的“局限性”

在 forward 的每一步里，比如加法、乘法、Relu、等等，如何做 backward 就已经记录到了结果的 tensor 里。所以可以在最终结果 tensor 里直接调用 backward 。

比如vue项目，如何能在不重新打包的情况下最大限度的由接口控制页面呢？我目前能想到的就是条件渲染、列表循环、背景图这些是可以根据请求数据去按需显示的，还有其他的方式吗？

一个页面有两个导航，切换导航会刷新url和页面 导致猴油脚本失效 求助怎么解决这个问题？ https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241108/682d660bfe1ca1e754e90e636a23fb61.png https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241108/e0b1970400eda19e6c592809ae228ea9.png (function () { 'use strict'; function main() { // 父元素 const parent = document.querySelector('#gar-sub-app-provider'); const search = parent.querySelector('button.ant-btn.ant-btn-primary'); search.addEventListener('click', function () { let timerId; let count = 0; timerId = setInterval(() => { console.log('打印测试') if (count < 20) { clearInterval(timerId); } count++; }, 100) }); } window.onload = function () { main(); }; })(); 每次点击查询重启计时器，我试过 在不切换导航的时候会正常运行，但是页面操作完成后会强制性切换到打款记录的页面，我再次点击发起打款 返回后 点查询 定时器就失效了 为什么？ https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241108/cb6e2526bfd6b108c1352dea466e68d8.png 我试过 这样的载入方法也不行 document.addEventListener('DOMContentLoaded', function() { main(); });

我搭建了一个 minikube 环境 pod 和 service、ingress 的声明如下： apiVersion: v1 kind: PersistentVolume metadata: name: mysql-pv spec: capacity: storage: 1Gi accessModes: - ReadWriteOnce hostPath: path: "/data/mysql-data" # Change this path to your desired host path --- apiVersion: v1 kind: PersistentVolumeClaim metadata: name: mysql-pv-claim spec: accessModes: - ReadWriteOnce resources: requests: storage: 1Gi --- apiVersion: apps/v1 kind: Deployment metadata: name: mysql8 spec: replicas: 1 selector: matchLabels: app: mysql8 template: metadata: labels: app: mysql8 spec: containers: - name: mysql8 image: mysql:8.0.34 env: - name: MYSQL_ROOT_PASSWORD value: "123456" ports: - containerPort: 3306 volumeMounts: - name: mysql-persistent-storage mountPath: /var/lib/mysql - name: custom-config mountPath: /etc/mysql/conf.d resources: limits: memory: "512Mi" cpu: "500m" requests: memory: "256Mi" cpu: "250m" volumes: - name: mysql-persistent-storage persistentVolumeClaim: claimName: mysql-pv-claim - name: custom-config configMap: name: mysql-custom-config # Create a ConfigMap with your custom configuration --- apiVersion: v1 kind: Service metadata: name: mysql8-service spec: selector: app: mysql8 ports: - protocol: TCP port: 3306 targetPort: 3306 type: ClusterIP --- apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: mysql8-ingress spec: rules: - host: mysql.example.com http: paths: - path: / pathType: Prefix backend: service: name: mysql8-service port: number: 3306 然后应用他们 minikube kubectl -- apply -f application/stateful/mysql.yaml 查看 pod 状态正常 ─➤ minikube kubectl get pods 130 ↵ NAME READY STATUS RESTARTS AGE mysql8-5db94fb5d5-22nhc 1/1 Running 2 (3d16h ago) 53d 查看 services 状态正常 ╰─➤ minikube kubectl get services NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1 443/TCP 53d mysql8-service ClusterIP 10.110.118.91 3306/TCP 53d 查看 ingress 状态正常 ─➤ minikube kubectl get ingress NAME CLASS HOSTS ADDRESS PORTS AGE mysql8-ingress mysql.example.com 80 33m 修改本地的 /etc/hosts ╰─➤ cat /etc/hosts 1 ↵ 127.0.0.1 localhost 127.0.1.1 vobiler740 # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters 192.168.49.2 mysql.example.com «我的 minikube 的 ip 就是 192.168.49.2╭─pon@T4GPU ~/code/me/k8s-console ‹master*› ╰─➤ minikube ip 192.168.49.2 » 然后从宿主机访问, 但是连接失败 ╰─➤ mycli -uroot -p123456 -hmysql.example.com -P3306 (2003, "Can't connect to MySQL server on 'mysql.example.com' ([Errno 111] Connection refused)") 然后我把 ClusterIP 改成 NodePort 却可以 apiVersion: v1 kind: PersistentVolume metadata: name: mysql-pv spec: capacity: storage: 1Gi accessModes: - ReadWriteOnce hostPath: path: "/data/mysql-data" # Change this path to your desired host path --- apiVersion: v1 kind: PersistentVolumeClaim metadata: name: mysql-pv-claim spec: accessModes: - ReadWriteOnce resources: requests: storage: 1Gi --- apiVersion: apps/v1 kind: Deployment metadata: name: mysql8 spec: replicas: 1 selector: matchLabels: app: mysql8 template: metadata: labels: app: mysql8 spec: containers: - name: mysql8 image: mysql:8.0.34 env: - name: MYSQL_ROOT_PASSWORD value: "123456" ports: - containerPort: 3306 volumeMounts: - name: mysql-persistent-storage mountPath: /var/lib/mysql - name: custom-config mountPath: /etc/mysql/conf.d resources: limits: memory: "512Mi" cpu: "500m" requests: memory: "256Mi" cpu: "250m" volumes: - name: mysql-persistent-storage persistentVolumeClaim: claimName: mysql-pv-claim - name: custom-config configMap: name: mysql-custom-config # Create a ConfigMap with your custom configuration --- apiVersion: v1 kind: Service metadata: name: mysql8-service spec: selector: app: mysql8 ports: - protocol: TCP port: 3306 targetPort: 3306 nodePort: 30001 type: NodePort --- apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: mysql8-ingress spec: rules: - host: mysql.example.com # 设置你想要的域名 http: paths: - path: / pathType: Prefix backend: service: name: mysql8-service # 这里填写你的 Service 名称 port: number: 3306 # 这里填写 Service 的端口号 然后应用 minikube kubectl -- apply -f application/stateful/mysql.yaml 再次从宿主机连接 mysql, 就成功了 ─➤ mycli -uroot -p123456 -hmysql.example.com -P30001 1 ↵ MySQL mycli 1.27.0 Home: http://mycli.net Bug tracker: https://github.com/dbcli/mycli/issues Thanks to the contributor - chainkite MySQL root@mysql.example.com:(none)> 所以为什么呢？为什么 ClusterIP 不行，但是 NodePort 却可以呢？

问题的背景是我看到了这篇文章： "https://zhuanlan.zhihu.com/p/146410261" (https://link.segmentfault.com/?enc=RyvEA0WIa1k1OWgHZ3vA8g%3D%3D.eUjeTVjmIonZiPCirsBzotjfFDqcsUeqt96utNqqz%2BWEMbfeFDn1Zq%2BD9dE4wyfW) 提到 强引用链： thread -> threadLocalMap -> counter -> MyCounter.class -> WebappClassLocader ，导致WebappClassLoader泄漏。 对这个有疑问。 Class类型被卸载的条件 "图片" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241106/b686f6a0b00cfb3e92c42c2705049525.png) 疑问点是 其中第二点： 加载该类的类加载被回收，是指 类加载器对象被gc。 假设MyCounter.class 由 WebAppClassLoader加载，那么 通过MyCounter.class.getClassLoader() 就可以得到WebAppClassLoader， 而WebAppClalssLoader 被gc的条件必然是没有任何人引用她， 所以 如何做到MyCounter.class 不会引用WebAppClassLoader? 否则是不是 就会出现 WebAppClassLoader一直被MyCounter.class所引用呢？ 如果一直被引用的话那么WebAppClassLoader对象就不会被gc，那么MyCounter.class对象自然也不会被gc了。 感觉是鸡生蛋蛋生鸡的问题。 如果说 MyCounter.class 对 WebAppClassLoader对象有强引用， WebAppClassLoader对象又怎么可能会被回收呢。如果WebAppClassLoader对象不被gc，那么MyCOunter.class又怎么会被回收呢？ b

使用uniapp开发app的时候，如何获取设备的当前位置？ 疑问一：是否需要ios和安卓端适配？如何适配？ 疑问二：是否需要进行定位授权？如何授权？

window.addEventListener("click", (e) => { const input = e.target if (input.className.indexOf('input') === -1) { return } input.value = '赋值' console.log(input) }) 不用采用ref,v-model 赋值之后，点击鼠标空白楚值就消失了。 测试："https://codesandbox.io/p/sandbox/ji-ben-yong-fa-ant-design-vu..." (https://link.segmentfault.com/?enc=MQBU1jqTHWvTycUoKazODw%3D%3D.2xUG3dKxg7QF%2BAuXz3ruzOjs20Oj3VHoyoj4UJmqJSb1x4eF50p%2BRCnt2PAEexoc0zAKCFk2618sD8errCpsf1cTaqHthYxgyTTCV3ZcILxm4m%2B%2BpK6%2FwbvIxCjcLS9ficeDT358h2gQM1K8C5rdMrk9JKhV0RcPnLe1ENTjsF4%3D)

一个简单的页面: "app\fetch-demo\page.js" 'use client' export default function FechDemo() { const fetchPromise = fetch("https://mdn.github.io/learning-area/javascript/apis/fetching-data/can-store/products.json",); console.log(fetchPromise); return ( fetch test ) } 浏览器控制台返回两次同样的结果： "Snipaste_2023-12-13_13-54-30.png" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241101/e08755949e60264297a35679a55291ad.png) 为什么会这样？

"image.png" (https://wmlx-new-image.oss-cn-shanghai.aliyuncs.com/images/20241022/d7d4699f4e3c3cc972b517e7f25cfdb2.png) 这个怎么解决？ 把他们调换顺序也不对

一小段python代码： for item in [n1,n2,n3]: f1(args1) f2(args2) f3(args3) 三个函数的结构类似 def f1(args): try: doing something except: pass 我的需求：f1 ,f2,f3这三个函数，无论哪个函数在运行中触发了except,那么当前循环立即中断，进入下一个循环。 请问，如何达到这个需求？

和img一样,直接"canvas.drawImage"绘制"HTMLVideoElement"就会取视频元素当前的一帧

问题背景 使用vue3+vite写了一个内置于一个app里面的小程序，打包上线后Android一切正常，ios打开后发现白屏，经排查后发现，iOS版本15.3.1能打开，17.1.1不能打开，17.1.2能打开但是加载不出来阿里巴巴矢量库引入的图标，但是他又没报错，目前个人觉得是ios版本兼容问题，但是又不太清楚，有高手看看？ 尝试过使用@vitejs/plugin-legacy插件

REACT Umi根据后端返回二进制文件流，前端输出成XLSX文件，直接下载 一点下载直接报错了求大神求助！！ Unexpected token 'P', "PK const exportExcel = async () => { exportExcelTemplate().then(res=>{ const blob = new Blob([res], { type: 'application/vnd.ms-excel;charset=utf-8' }) console.log(blod) const fileName = '病害模板' + '.xls'; const link = document.createElement('a'); link.download = fileName link.href = URL.createObjectURL(blob); document.body.appendChild(link); link.click(); URL.revokeObjectURL(link.href); document.body.removeChild(link); message.success('模板下载成功') }) 我封装的请求 //下载导入模板 export async function exportExcelTemplate() { return get(`/inspection/exportExcelTemplate`,{},{responseType: 'blob'}); }

被TLS指纹反爬虫了,可以用curl_cffi库爬 import random from curl_cffi import requests ua_list = ['Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0', 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.81 Safari/537.36 SE 2.X MetaSr 1.0' ] headers = {'User-Agent':random.choice(ua_list)} url="https://cn.investing.com/indices/hnx-30-components" resp = requests.get(url, headers=headers, impersonate="chrome110") print(resp.status_code) with open('temp.html', 'wb') as fw: fw.write(resp.content) 如果页面数据是异步加载的,还是用selenium这类库爬吧

我希望能够获取中 id为"is_load"的div元素 但是ref无法引用到 ,在onMounted函数中使用nextTick回调打印处理这个dom也是空的，等待渲染后也不行 有什么方法可以操作到dom 加载更多 {{ item.goodsName }} import {onMounted, ref, nextTick} from 'vue'; const test=ref(); onMounted( () => { console.log(test.value) //打印为空 }); document.getElementById("is_load") //也没有拿到这个元素 vue 无法获取到template中的dom元素?

"自签名证书" 和 "由受信的CA机构颁发的证书" 还是有区别的，它只能让你完成 https 的基本使用，它本身是不受信的，所以用户访问的时候"浏览器会"给"二次确认"提示让用户确认是否访问 你的 "https" 能访问就代表它已经生效了，但是你想让去掉浏览器上的"不安全"标识必须使用"受信的证书"才行 这种手动确认进入就行了 "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241011/333a7c127f315b8ecf71d60e91bd567d.png)

"image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241011/a0c0cb5f14f016a968c267eb710ebc71.png) *** 看起来对HTTP协议理解的还不够深刻。HTTP是超文本传输协议，说白就是一种文本协议。 你说的"Content-type是application/x-www-form-urlencoded"是一种理论上的。但是后端可以完整的接收到整个请求(请求头和请求体)。 比如Python的Flask框架，可以使用 "request.data" 来接收请求Body原始内容 ，而不会去关系其具体的格式。 *** 再延伸一点，假如对请求Body加密呢，Body就是一堆乱码。这该如何解析呢？

这种操作可以直接调 "echarts" 提供的 "dispatchAction" 来选中 "https://echarts.apache.org/zh/api.html#action.select" (https://link.segmentfault.com/?enc=BxWsYBbFV80LXE1AuOqzLQ%3D%3D.3vU1bSlg1ayLTq6l9fIYxih7%2FF%2BSNeWmX7buaPM0qdBtFl9THM87LE5BwU5MVXgSL4ACnhK8G%2FTyxyXQ6MCYmw%3D%3D) "image.png" (https://wmprod.oss-cn-shanghai.aliyuncs.com/c/user/20241010/81a0b546b877a97a8923a06db870e34d.png) 改动了下你的demo，是可以的"最小实例" (https://link.segmentfault.com/?enc=AhtmxlmdjYt5cAffvDnv8A%3D%3D.rQ8IRaXiksdBrSfjhFwA44zAdg2%2BgNdlb87zy4FZMt8OUXl%2FM1C7bAcagJJCqEUcDg2TxW1UibeoOD6NO5RCVZe4pd%2BU0NzGHsAmUvoCQzwIWFRrGvSuWEJPJe%2B%2Bo0PuhjDCYDCAzKJse%2BEUnBUDxpWXGYB1m9kSHRUnDvnln1DXD9XxTOfiXMitmc5hUZknLqEHYDFhvbG%2BIn%2FKYAaMNGeL6DCnOe5ysCoMs0yBm3lZxLgNNHsTM59KMVitC%2BqTT8%2B9LXLqeNcBlEwxOHaEDc7yyr8YrR9h1JU6RBO12LJ3gSrDj5nisMM%2Bc%2BeV3FD%2F3fl2U%2FsFIuCPYPNAd23SUtxvBpEGjYCUSz2gGXpkTKjWgpfjQw8erokVhXWgKHmPyeNKZXEzXnMuHqzhSFXCEZIv%2BTWndHID3%2FyfGNKXbfH3CGrGE2AVlnl6RPfUsB78t8w8WRxqhiQ0JokivvWuW2afkGBIeoDSz1g1E0sv8IIRhuaAJHUaF8SH7ImiMTIlhSTN6CZw%2BUSOzBZztQcLqPpUM6srhBEhpBUvuOehJbuvI9XKjwjQmwoeWURVduJbTglGu6sTUpjFM6AFR55iTElvgU1GP%2BblWFX6B3F5w%2FCTOmtCjh9P2nb6IgpB%2FNJXoIs6iyVsknTncynP6NB1srPR5B4%2Fr2Uo9ITkJzEq79EfjCSHQiTrMxTcL5QQ5LDRcf983fdWyhVSCr5p82YfFY6TKfBVFWgyWE9CQvCBRwj8u30nNJi5%2B67%2B4NexzpGm4GOzg94UOoD6NT8QYKizj%2FAnVxKIOmSasobUaPuVLYm7mRiOsGIJKOzKYvzAuv3rLIm3hDyG1fjOlypEcQ%2BdY3AsuLSAUUzlkezXqPm6f5NTU88UksJVVpBqbPbTtdIXyr0gu17Qa%2BM5sFWZGNMA6AQ7iCfaqLiKwNW3GrdrLT89jiGOhwtAlrLW5NguNl2PqkAY98NnLjJK2%2B5KGMdZxWTlkytFRx2YcF9FzsEQzUYWNWk4Jh6aNDCBp6PXVbbAC7%2FxJyR2M76ijx40Vt7qMiKS4f7Bju3oMMCE9Cx95CoQ%2BIn6xN4zTU9MPH%2Fu95XQtOoqWa9mqcgL6sBdegzlit%2BAcQZEBYjASJCP5vd4bZzFYWvhATTyU1BAA9LHnoO4FH6cvSaKC0fERIy%2FIXOfvw%3D%3D)

index.js 全部代码 console.log(window.num); // undefined console.log(num); // Uncaught ReferenceError: num is not defined 为什么可以直接使用 window 对象点出不存在的属性 num? 执行原理是什么? 之前一直以为这两段代码都会报错 "not defined" ...

在项目使用了window.print绑定在某个打印button以调用打印功能。但此时遇到了一种情况导致无法成功呼出打印界面: 页面中可能通过object标签插入了pdf的显示，此时再调用window.print无法呼出打印页面 调查了一下发现是因为通过object引入对象，导致window对象发生了改变 但尝试了半天找不回原来那个window对象，也无法唤出打印方法 所以通过object引入对象以后window对象发生了啥变化，如何呼出print方法呢？ object的使用如上，此时使用window.print无法唤出打印界面

写了一个js 工具库，但是 "index.d.ts" 这块无法得到满意的实现，需要帮助。具体看下方issues "single-promises issues" (https://link.segmentfault.com/?enc=kRL36Ss7TByGt1cheyXihA%3D%3D.rWvh8clTzxr8MGIWq4l5t8K2wf%2Fl10giHPVGGmuxhRAfqh9Bby%2B7Db1cDLilv7uYdCVWj%2FG%2B8SYlyBVrxOZm2w%3D%3D) 可在issues 里看到。