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403 views

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r - Display a button when the shiny app launches for first time that will lead to tabItems content

I have the shiny app below which includes tabItems. I would like when the app is launched for first time to display an actionbutton ... , "sidebar", selected = "conse") }) } ) )...

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

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672 views

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用clion导入php-src的C语言源码，好多函数、宏没有声明，不能跳转，怎么解决呢？

RT，不知道怎么搜索解决，谢谢拉。是不是要设置包含lib文件的路径啥的？...

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

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428 views

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How to render a multi-textured 3D model using LWJGL?

I am new to LWJGL and I've just learned how to texture 3D models using the same texture for every face. I ... do I deal with these multiple texture files? Can someone help?...

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

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1.1k views

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eslint 有没有办法自己格式化一些分号，空格的问题

使用webstorm开发，随便加入一个外来的js文件（可以稳定运行的），eslint会有很多错误有办法可以自动修复一些格式问题吗？太多一个个去改实在太麻烦了，大家都是怎么处理，请高手指点。...

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

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629 views

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python - django.template.exceptions.TemplateSyntaxError: Could not parse some characters: |{{b.count}}||rangef

I'm trying to loop in a Django template by using a custom filter, but for some reason I receive this error: ... mention that b.count is an Integer field. Appreciate your help!...

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

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218 views

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I am subscribing for data in the same function which gets called every time I type something in the textbox right approach in Angular?

I have an input box which triggers fetchContractNumber function every time when I type something in it and I am subscribing for ... | translate }} </mat-error> </mat-form-field>...

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

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2.4k views

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jquery - Change Text box value based on Data list selected value - PHP

I've created a table with two columns 'id' and 'names' and in my PHP(html) page added data list and text area ... my code. If this was already solved, please comment answer links....

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

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469 views

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使用fftw库后编译显示对其中的函数未定义的引用，请问怎么解决？

代码如下 #include <fftw3.h> int main(){ int N = 10; float *in; fftw_complex *out; fftw_plan p; in = (float*) ... fftw_free'未定义的引用 collect2: error: ld returned 1 exit status **...

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

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439 views

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webstrom编译less文件是没有智能提示

编译成功，但是没有代码智能提示像是在记事本里编辑一样...

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

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465 views

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exception - How to retry call a method with final input in java?

I'm beginner in java . I'm totally confused about this task . this is the description of the task : Description package ... I should not appear as well." Thanks for your help :)...

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

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627 views

1 answer

gulp 构建项目遇到 Cannot find module '*' 的问题

先上一组图：看，构建（运行gulp命令）时，报错了提示：Cannot find module 'engine.io'，然后就把该模块安装了下再构建，又报错，提示找不到某模块，然后就把该模块安装了下再构建，又报错，提示找不到某模块，然后 ... ... 天呐，根本停不下来，不断的找不到模块，不停的安装那么问题来了，怎么会这样，有什么解决方案？...

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

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503 views

1 answer

如何追踪和记录游客(未登录用户)的操作和浏览数据？

我们到购物网站，匿名浏览页面，添加商品到购物车，直到我们主动清空购物车或者离开购物网站，购物车才会清空 1.游客浏览商品页面和添加商品到购物车，购物车是如何保存和显示未登录用户的商品的？用户登录后，我们用session来处 ... 的操作，应该怎么做？ 3.在APP，如Android 客户端，里面如何实现类似的功能？分别记录登录用户和游客的操作和数据？...

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

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542 views

1 answer

vim ctrlp文件搜索时当前路径问题

当我用ctrlp插件打开文件的时候,打开了某个文件后,文件目录自动切换到了某个文件所在得目录下,这样我想搜索其他目录得文件就搜索不到了如图,我创建了ABC这个目录和de两个文件, 当我, cd A vim . :pwd ... 索目录下的其他文件的时候就搜索不到了,例如搜不到上述例子中的文件e vimrc配置文件没有 set autochildir的设置项...

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

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281 views

1 answer

ES6的weak set的作用？

weak set不可迭代，不能使用for-of, keys(), values(), forEach()来遍历取值那么它的作用是什么？就单单是存对象么？...

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

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1.2k views

1 answer

请问 webpack externals 的变量能否在 loader 中访问

在 webpack config 中配置了 "externals": { "vue": "Vue" }, 能否在 webpack 的 loader 中访问 vue 对象呢？...

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

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413 views

1 answer

angular.js中的 directive 中的 link 为什么会执行两次？如何解决？

如上两图所示，初始化时link被执行了两次，求问这是怎么回事？如何解决？...

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

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423 views

1 answer

performance - How do I budget my fragment shader pipeline?

I'm making a 2D pixel-art game in Godot. Besides drawing a whole lot of sprites, I'm thinking of doing ... later down the pipeline? Would this cause any special performance issues?...

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

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sorting - Can a counting sort be considered in-place when the problem constrains the number of input values?

I was doing this problem on leetcode: Given an array nums with n objects colored red, white, or blue, sort them ... counting sort not an excellent, valid answer to the question?...

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

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209 views

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How to replace choicerule to reduce "meaningless" answers that kill grounding process using asp (clingo)

I'm currently working on an answer set program to create a timetable for a school. The rule base I use looks similar ... will work now and updated the hours per lesson for class 5...

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

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444 views

1 answer

无论怎么调整弹层的层级,审查元素时<html>始终在最上层

弹层modal的css属性设置了fixed,z-index:9999； <html>标签未设置position和z-index。但是审查元素的时候html始终在最顶层，无法点击到modal里面的dom。求教是什么可能是哪些情况导致的...

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

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253 views

1 answer

Repeat cell content in excel to fit its width or height

I have columns with merged cells, that the content dispears in other pages of the document, I want some how to repeat ... , but since the column contents changes, it does not work....

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

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356 views

1 answer

canvas在IOS8中不兼容。画不出来。

var canvas=document.getElementById('myCanvas'); var ctx=canvas.getContext('2d'); ctx.fillStyle='#FF0000'; ctx.fillRect(0,0,80,100); 上面是我在 ... ，在ios8.1.2版本的苹果6上面，cavas画不出内容，求解决办法 ...

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

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405 views

1 answer

minecraft - What colour format is used in command block commands?

I just started using command blocks in Minecraft and I'm stuck. I'm trying to make a custom firework rocket colour ... command, and checking the value. Thanks for your help, Huky...

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

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226 views

1 answer

js取消事件綁定

给一个元素使用addEvent多次绑定了点击事件，有什么办法可以一下取消所有绑定的事件吗...

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

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446 views

1 answer

php7偶尔慢的问题

当前在用PHP做接口开发，发现总有1%不到的请求，会很慢看机器监控发现内存和cpu完全没有抖动，接口中有使用到redis，并且redis监控也正常大家有没有遇到相同的问题，或者有没有可以监控此类问题，找出问题原因的方法？...

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

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244 views

1 answer

InetAddress.getLocalHost() 为什么耗时5s？

InetAddress.getLocalHost() 这个方法我在本地测试，无论怎么测试都是5s，这个函数是哪里会这么耗时呢？我用的jdk是1.7...

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

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407 views

1 answer

js中递归调用时参数是否会改变

如下所示的一个递归函数，为什么args.concat(i)没有根据循环增加？args是一个引用类型，在我的想法中，这个args会在循环时把0-9都放进去 var loop = (fn, n, args = []) => { if (n ... loop((...a) => console.log(a), 2); //结果: [0,0] [0,1] ......

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

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204 views

1 answer

vue组件内无法更新数据的问题

如下图，如果v-model是一个固定已知的属性，比如aa 就正常 <el-radio-group v-model="aa" > <el-radio :label="1">选择11</el-radio> <el ... ">选择22</el-radio> </el-radio-group> 例子：https://jsfiddle.net/milu2003......

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

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