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    描述 现在共有三个组件:A、B、C。 C是B子组件,B是A子组件。现在C、B本身都有插槽,想在A组件中调用B时,直接使用C声明的插槽,如何实现呢? 代码 写了一段期望符合预期的代码。然而vue提示异常,求大佬指点 https://codesandbox.io/s/dawn......
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I've been fighting with this problem for a significant period of time now but can't seem to find any way to permanently fix it. In our internal CRM system (ASP. ... data = new DataSet(); da.Fill(data); sqlconnection.Close(); return data; }...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am using treetagger to extract lemma of word. I have a function which do that but for some words it is giving list out range error : def treetagger_process( ... mot 22 print(lemme) IndexError: list index out of range Example of texte :...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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723 views
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    一旦请求体太大会报错: 2020-11-05 10:30:25,638 WARN 15522 [-/::1/-/5ms POST /file/upload?_csrf=65aNrQrDPCJFtxoR8PeLvdN9] nodejs.PayloadTooLargeError: request entity too large, check bodyParser config ... || 500; } }; }; 依然不行 如何才能捕获bodyParer的错误并返回给前端?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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465 views
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    非 root 用户,网站目录是 /home/www/web/ supervisor 配置文件: [program: weba] dirctory = /home/www/web/ command = /home/www/web/.env/bin/gunicorn -w 4 'app:create_app()' autostart ... 入 :/home/www/web/.env/bin/gunicorn -w 4 'app:create_app()' 是OK的 这是什么情况...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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458 views
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    项目通过websocket连接 不管设备是否在线,都是推给我全部的设备,仅仅是type:online/offline表示设备状态 设备为在线时,如下图所示 设备为离线时,如下图所示 采用的是:echart+百度地图 部分代码: ` series: [ { type: "effectScatter", ... } }, zlevel: 1 } ] ` 目的:当某个设备离线时,就将对应点的颜色变为红色,应该怎么设置rippleEffect里面的color?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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503 views
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    下面是千分位格式化的正则表达式,传入1234567890,返回 1,234,567,890 不知道如何理解,请逐个字符解释给我这个小白听 function regFormatPermil(v){ const reg = /d{1,3}(?=(d{3})+$)/g return `${v}`.replace(reg,'$&,') }...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
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    比如 var flmArr=[1,3,4,6]; 有好多个checkbox ,如果checkbox的value值是flmArr其中一个值 那么这个checkbox设置为选中状态,否则设置未选中 <label> <input type="checkbox" name="checkGy" value="1" />分类1 </label> <label> ... 值 想与所有的input的value值对比 如果有相同值的 选中 没有的设置未选中 上面我写的代码有问题 该怎么实现...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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750 views
1 answer
    微信公众号里面嵌套的h5页面每次更新以后线上都没用反应,是因为微信自带的缓存,文件名不变的话微信不会从新加载文件,必须手动进设置里清除缓存,但是用户并不会这样的操作,请问怎么在h5页面清除微信缓存...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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302 views
1 answer
    Is there any difference between <ng-container *ngIf="flag"> <child-component></child-component> </ng-container> or directly <child-component *ngIf="flag"></child-component> And what is the best practice for that?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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769 views
1 answer
    So this is the image file I got. Now, how do I convert this picturePath into a byte array so I can store it in my ... cursor.getString(columnIndex); cursor.close(); ivFoodPicture.setImageBitmap(BitmapFactory.decodeFile(picturePath));...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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890 views
1 answer
    Here I'm trying to select multiple files and upload them at one click.When I select single file and upload then it render correctly. But when I upload ... Inside render const decription = this.state.selectedFiles.map((item) => {item.name}...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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408 views
1 answer
    刷新页面不会清除数据,但是清除浏览器数据,vuex会默认state里的初始化数据,各位大佬有什么好的解决方法?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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491 views
1 answer
    如图,html和css中的版本信息是怎么添加上去的?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
426 views
1 answer
    如图所示,文字p标签其实是与图片顶部对齐的 (此处设置的 line-height: 35px) 但是视觉上看起来并没有对齐 如何解决这个差异呢?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.6k views
1 answer
    Try to implement icon on react native i had "error Missing list of packages to add to your project." I checked my package json and it s ok ( i m thinking ) i did rm -rf ... test-renderer": "16.13.1" }, "jest": { "preset": "react-native" } }...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
1 answer
    I tried both the custom action URL as well as the default URL *.firebaseapp.com/__/auth/handler, but no luck. Both cases show the same error on the screen ... to the browser key. Where could possibly go wrong? Any help is appreciated ??...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
1 answer
    arm-linux开发板上电启动阶段,串口打印的信息,是uboot打印的吧,还是先uboot打印,然后启动kernel后,由kernel打印?... arm-linux开发板上电启动阶段,洛川苹果串口打印的信息,是uboot打印的吧,还是先uboot打印,然后启动kernel后,由kernel打印?...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.2k views
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    Assume that I have a web page that has records, displayed in a table ( that has several columns). Now there is search-input-box and a search-button. Using ... on how can I make it wait until the table has been refreshed with searched data?...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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911 views
1 answer
    请问一下: 1、文章内容是怎么存储的,具体流程是啥?不会文字全部放在数据表中吧? 2、一般的个人博客的数据表怎么设计、 有知道的大佬辛苦解答一下...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
1 answer
    只有TB_IM_MESSAGEINFOA与TB_IM_MESSAGEINFOB, 并且TB_IM_MESSAGEINFO还不是视图 为什么执行sql查出的信息还是TB_IM_MESSAGEINFOA的信息...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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920 views
1 answer
    I have a script where you need to answer to the bot with yes (da in the script) or no (nu in the script) and when I run the script on discord ... rejections that are not handled will terminate the Node.js process with a non-zero exit code....
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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959 views
1 answer
    上面这样可以正确输出 为啥第二种写法就报错了呢?...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
780 views
1 answer
    I have my Flask application, with a profile function down below: @app.route('/profile/') def profile(username, password): return f"<h1>username entered: {username} ... working well. Why does it have this error, and how do I fix it?...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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951 views
1 answer
    类似下面这种,声明 string 类型必备属性 ServiceName 可以么? type Router interface { ServiceName string Route(msgB []byte) error }...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.2k views
1 answer
    I am new to Spring MVC. I am trying to implement onclick event in anchor tag in which I've applied jstl tag in table row. So I am not sure about how to pass parameters ... #" onclick="getdata()">${truck.compname}</a></td> </tr> </c:forEach>...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.6k views
1 answer
    公司网页程序,用chrome 内核的浏览器打开,过一会儿就会出现 ERR_HTTP2_PROTOCOL_ERROR 200 不知道是什么原因,控制台的network 又没有加载失败的连接,求解答...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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922 views
1 answer
    想要跳转链接,比如跳转到www.baidu.com,通过服务端跳转...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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