如何在McOS上检测C++中的按键?

I'm writing an assignment that needs to show some event-driven programming paradigms so I think key press detection should work fine. I've google for some hours and I've found some solutions for Linux

使用pip和easy_安装解决了windows上的pycurl安装问题

SO i think I finally found a fix to this issue. Ive been trying for a long time different commands but i always kept getting Please SPecify --curl....I found a fix that worked for me.Instead of instal

如何使用python代码在jupyter笔记本中保存ipython小部件的状态

I am using ipython widgets in my jupyter notebook. Now when kernel is restarted, the widget state is lost and a message is displayed: “Jupyter widget could not be displayed because the widget state c

如何用Ruby从文件中删除一系列字节?

At binary level I need to remove a range of bytes from a file (overwrite), for example in this range(i..-25) but IO.binread gives me back a value nul because the file is very large (>100MB). i = 1222

安装操作系统外部硬盘

I have acer A515-54G which has 512 SSD on which genuine windows is installed. I have an another harddisk on which ubuntu is installed. when I restart and plugs the hdd and press f12 it gives me 2 opti

找不到n*n矩阵的行列式

I have written the following code to calculate the determinant of a N*N matrix. it works perfectly for the matrix 4*4 and 5*5. but it could not find the determinant of the 40*40 matrix named Z_z. The

如何计算swift4中的路径长度

1.How can I calculate the length of UIbezierPath after use UItouch? 2.Normally UItouch like touchesBegan, touchesMoved and touchesEnded can use to draw many line, after I add some alert function to v

使用具有相同ID的按钮单击时将数据获取到模态

Scenario - I have a page that has job listings, every individual job listing has a button called apply. A modal pops open when you click it, however that modal has no context as to which job the user

doxygen:qgarray::at:绝对索引xxxxxxxxx超出范围

I am using Doxygen to parse Linux kernel (https://github.com/torvalds/linux). After running more than 20 hours, while generating the call graphs, it reports errors: qgarray::at: absolute index xxxxxxx

如何保存我的cardView单击事件状态以保存其颜色,尽管使用了共享首选项

I was implementing Shared Preferences on my android app where i want to save the click on listener event that the cardView colour is changed and stays that way even if the app is killed or restated bu

为什么会出现数据库错误:检索数据时权限被拒绝

I am new to firebase Android and loving it. Before I was able to retrieve the data. But Now that I am trying to check whether the same data exist. I am getting Database Error: Permission Denied. Fir

Revit API-C#-日光和阴影设置-计算一年中每小时的日光方向

I'm using the example code from Jeremy Tammik to calculate the sun directions for a year period through Revit API. https://thebuildingcoder.typepad.com/blog/2013/06/sun-direction-shadow-calculation-an

在GeForce 9300M GS上运行CUDA时,调用cuInit会导致CUDA错误无设备

I have a very old graphic card GeForce 9300M GS. I am trying to run cuda, but I am getting error. running nvidia-smi +------------------------------------------------------+ | NVIDIA-SMI 342.01

java中Main()的初始化和寻找替代代码

I am given a following partial Java code: public static void main(String[] args) { var main = new Main(); main.start(); } I don't understand the initializing in Line 2 (Main()). Also, what is

while循环和if条件的MIPS代码

How would I convert this code into MIPS instructions? while(i>0){ if(i>2) { A[i] = A[i]+B[k] } else{ A[i] = A[i]-B[k] } i--; } where i,k are stored in $11,$12 registers and the base

Python请求模块post返回200但未写入数据

I am using Python 3.7 with requests module 2.22.0 following is my code in python : data = { "id": 35, "name": "sample", "user": 1, "account": 3, "auto_remove_resource": "N", "generations": 30, "ena