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1 answer

我有前端开发经验，做3D可视化项目入门要多久？三维建模 js 开发就业全景虚拟技术

3D可视化是新兴行业，可以考虑物联网3D可视化或者3D影视游戏，前景都很看好 JS是前端开发语言，目前流行的是3D开发框架three.js，Unity 3D也有JS脚本！不过three.js更适合技术探索，商用项目开发成本为先，需要具备以下条件才 ... 是有目共睹的，目前累计开发项目3万个，服务近15万开发用户，也欢迎有志向做3D开发的前端人员来交流学习 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.8k views

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请问ant desgin vue的label怎么设置换行

` <a-form-item label="目前标准中主要显著特征值" :label-col="{span:3}" :wrapper-col="{ span: 21 }" > <a-input</a-input> </a-form-item> `目前因为label的字多了，字会被input给覆盖。，请问下各种大佬怎么把label设置成2行...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

r - Looping over a list and get new variables

I am total newby to R and want to apply a specific function to a list of data.frames. The dataframes contain rows completely ... == 0) You would help me a lot :) Best, Kathrin...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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985 views

1 answer

quote by placing > at start of line in python?

I need to do a or linebreak add 2 spaces at end...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.2k views

1 answer

接口返回得数组对象中有null，怎么全部都判断一遍。

每个里面都是null...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.0k views

1 answer

python - Splitting string when the parameter is backslash

I have been trying to do a very simple task but seems pretty hard. I am trying to split a string at the ... way to simply chop up words using the backslash as the delimiter?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.6k views

1 answer

android - Factory Reset Persistent Android_ID

No body found yet a solution to acquire an ID similar to Secure.getString(getContext().getContentResolver(),Secure.ANDROID_ID) but persists after factory reset?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.3k views

1 answer

Vue slot如何多级传递

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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3.6k views

1 answer

c - Infinite loop in program written as an exercise about finding the value of Pi

I have this assignment The value of Pi can be determined by the following product 2 * 2 4 * 4 6 * 6 N * N Pi = ... is stuck and doesn't give any value when I launch it. Why?...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.8k views

1 answer

git show 查看指定SHA的文件，加管道过滤后部分路径变为...这是为什么？

如图所示，git show 1660ad44 --stat 是OK的一旦加上| 想过滤出具体的路径和文件名，发现部分路径变为... 导致后续shell取不到文件而且我git show 1660ad44 --stat &> /tmp/git ... 一下：截图中的命令有错误，grep需加E，否则git的一些信息会输出，干扰过滤: grep -E '|'...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.1k views

1 answer

高德地图样式修改

高德地图上自带的公路样式怎么修改。...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

1 answer

go 写了tar打包的程序，但是目录结构丢失

本来想配一个图，但是xx的上传失败我简单描述一些就是本来打包一个有子文件夹的但是打包后都在root目录下（实在tar格式文件的，root目录） /* 描述: Cherry 作者：剑仙 ... TestTar(t *testing.T) { Tar( "E:色图杂物", "C:codego_codeCherrySnapshot杂物.tar", ) }...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.1k views

1 answer

python - Currency Conversion Dataframe - skip Columns

I am retrieving Yahoo stock ticker data and want to convert the given currency to euros. For this purpose I am using ... I could just target that one column and convert it back?...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.5k views

1 answer

python 3.x - Check if NaT changes to datetime and update value

I have the following data frames. df_1: order_id date 123 2020-01-01 456 NaT 789 2020-10-10 135 2020-05-31 234 NaT ... date but it is not capturing anytime NaT becomes a new date....

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.8k views

1 answer

数据库定时查询大量数据

问题描述有一个场景，需要定时查询数据库库中所有会员的订单信息，假设量很大，每半个小时查询一次，此时单节点直接查询肯定搞不懂，如何在多节点的情况下实现暂时不考虑数据库设计，重点在于多节点之间的负载平衡以及单个节点内，半个小时内的 ... .直接把订单数据都存在EL里，减少对数据库的压力疑问一般像量比较大的电商项目都采取哪种方式来实现？比较稳固可靠？...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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8.1k views

1 answer

numpy - Problem regarding using Gillespie algorithm with python

I'm working on a problem considering two events (W, M) and try to calculate the time decay from W to M ... suggestion based on the previous code to approach this kind of problem....