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function in c referencing memory externally allocated

I am splitting the lines as they are red from the input: char **split (char *in, size_t *n, char *delimiter){ if ( ... ? How (then I would use memset before next line)? Thank you!...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Difference between Type casting and Up/Down casting in inheritance [Java]?

We know the following:: (Edit 20210101_0059 EST) public class Main { public static void main(String[] args) { int myInt ... that is not used in "Reference Type Casting"). Right?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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通过ajax +php header下载文件

1.两个文件一个是浏览器页面，一个是后台php文件，想使用php header来下载文档，像下面这样写之后，如何在浏览器页面弹出提示下载的对话框目前是点击浏览器窗口的下载没反应，但是如果在文档列表窗口直接点击 ... 'r');//打开文件 echo fread($h, filesize($file)); //读取文件并输出文件（即下载文件） ?>...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node.js - Instantiating a Sequelize connection multiple times in a project: is this a bad idea?

My goal with this question is to achieve, in a safe and sustainable way, working VS Code intellisense with Sequelize model ... ? Do I need to be concerned of any side effects?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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321 views

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iframe高度自适应问题

下面是主页面的内容： <script type="text/javascript"> function changeFrameHeight(){ var ifm= document.getElementById("iframepage"); ifm.height=document. ... 页面缩小时，home.html内容不能全部显示出来，应该怎么更改？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node升级报错

想升级node,结果显示无法执行脚本？然后在想问一下，类似这种npm安装命令行报错怎么看错误的关键点？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Multiple refs inside a Vue.js component

I have a polygonCrop component which one of them has a ref with canvas property, I am using each component in separate crop ... want to know if this is the right way to do this?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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apache flink - Can't understand the result for the event time group by window

I am using Flink 1.12.0 and have a data collection and use that to try out the event time group window. ... the event excluded when the event time equals to the watermark?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Graphviz: create non overlapping edges from a struct to itself

I am trying to recreate in graphviz a diagram similar to the one taken from the CLR book: I am using the ... SVG myself, of course) or use a different approach altogether?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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215 views

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How do I write number pyramid in python without using range function?

I have to write a code in python to show the following output: 1 1 2 1 1 2 3 2 1 1 2 1 1 in a rhombus ... Please help me out on how to write the code without using range function....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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737 views

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[会员储值]怎么翻译成英文?

[会员储值]怎么翻译成英文?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

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Cuda debugging using Single GPU with visual studio

I am working on Windows 7, Visual studio 2010. Can we debug cuda code using single GPU which also providing display to ... are available ? NSIGHT seems to be working with two GPUs....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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417 views

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antd官网的中英文切换是怎么做的

antd官网的中英文切换是怎么做的...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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373 views

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tags - How to access previous directory in html

I have index.html file in "WTProject" Folder. I've created 404.html in "404" Folder which is in "WTProject". It ... so that it will go in previous directory and open index.html....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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501 views

1 answer

网页中文乱码无法解决，见图

在别的电脑上弄好了，显示正常，转到自己电脑就成这样了文件编码是utf-8,页面也已设置<meta charset="utf-8">，数据库编码也是utf8，究竟是哪里问题呢...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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289 views

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javascript - How do I clear a leaflet map in react so I can map fresh data?

I am attempting to clear a leaflet map in react when fetching new data to map, and i am unsure how to approach this. I ... .io/s/leaflet-test-forked-8hm3i?file=/src/Leaf.js:550-573...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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275 views

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JavaScript闭包问题求指教？

我需要一个函数默认执行一次，并且在jquery事件中还能被调用，目前卡在第二步了···· (function(){ // 这样会自动运行一次 })() $(window).resize(function () { // 我还 ... 这样会自动运行一次 }; demo() $(window).resize(function () { demo(); });...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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364 views

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neon - REV16 ARMV8 assembly Instruction

So, guys. I am making a simple code just to test the REV16 instruction on armv8 assembly. This is my code .data // ... do to make my code properly work? Thanks a lot in advance...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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744 views

1 answer

sql - Apply condition within a group in Nifi

How to get list of suppliers having only open orders? My sample data is as below: SuppierID, orderID, orderStatus ... processor but having clause not supported by Nifi it seems...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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460 views

1 answer

kotlin - My application tries to save photos, however the following error appears on some phones when trying to save

My application tries to save photos, however the following error appears on some phones when trying to save ... com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924)...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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513 views

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实现一种两边按钮，点击按钮切换中间的内容，中间可以是fragment，这种效果如何实现?

实现一种两边按钮，点击按钮切换中间的内容，中间可以是fragment，这种效果如何实现已经尝试过viewpager，但是项目中不好用，求其他解决方案....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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求解js语法糖 ...的含义

* [['hello'],['world','1','2']] * => [Array(1), Array(3)] * [['hello'],...[].slice.call(['world','1','2'], 0)] * => [Array(1), " ... 的作用但我水平有限，在网上找不到关于 ... 的资料，有没有大神解释一下有资源更好谢谢 ...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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589 views

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weex 中引入moment.js,安卓手机上render失败

const modal = weex.requireModule('modal') const _=require('lodash'); const moment = require('moment'); // modal.alert({ // ... 式npm install安装，lodash正常显示，moment.js导致安卓手机的页面渲染失败...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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420 views

1 answer

node垃圾回收、内存泄漏相关问题

最近刚开始研究垃圾回收，在试着回答饿了么大前端里的node内存释放相关的问题时，遇到了一些疑问： let arr = []; while(true) arr.push(1); 无限增加的数组，这肯定是会爆掉内存的 let arr = []; ... 个闭包不会被回收掉，所以会在内存中一直累积? 因为自己不是很确定，所以麻烦懂的小伙伴回答一下，谢谢！...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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496 views

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swiper嵌套时,纵向第一张加入图片后,纵向的小圆点消失了,怎么解决啊?

<div class="tab"> <div class="swiper-container swiper-container-h"> <div class="swiper-wrapper"> <div class="swiper-slide ... -pagination swiper-pagination-h"></div> </div> </div>...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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451 views

1 answer

vuejs + element-ui, 后台数据绑定select的option选项

使用vuejs+element-ui的时候遇到了一个问题现在有一个page.vue的页面 data() { return { searchFormConfig: { formItems: [{ ... return this.initialSearchFormConfig; } }, created() { this.getCities(); }...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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578 views

1 answer

onclick 事件点击将ask()直接写入和调用的区别

window.onload=init; function init(){ var x=document.getElementsByTagName('a'); for(var i in x){ x[i].onclick=function(){ return ... return confirm('are you sure?'); } 求教三种写法的区别...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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694 views

1 answer

how to parse dynamic json object in Typescript

I have a json object in my typescript which is returned from server side. One of the keys is dynamic. How ... parse JSON object here. Like : serverResponse.details{temp}.allList...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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