Note: this is not about how to build a hadoop development environment in Windows and how to ensure that it runs . I hope you can see the problem clearly first, don t spray me, thank you < hr > < H2 > problem description < H2 > recently set up a ha...
this is the article I refer to. The program that runs according to this article https: blog.csdn.net wangato., as shown in the picture, always reports the error in the first sentence. I Baidu has the reason, but has not been able to solve it. 1. Py...
1: add prod mode to package.json and package it as a production environment, as follows "scripts": { "dev": "vue-cli-service serve", "build": "vue-cli-service build", "prod": &qu...
public class A{ public static void main(String[] args){ B b = new B(); } } public class B{ int i; C c; B(){ i = 1; c = new C(); } } public class C{ } it is generally said that the reference is on the st...
problem description in the process of development and testing, we often have to do all kinds of test domain names. How to manage domain name resolution elegantly through the lnmp environment established by docker-compose? only consider docker-compos...
simple development instance HTTP protocol is normal, WebSocket protocol error is not recorded in "client connection failure reason " WebSocket connection to ws: 127.0.0.1:2000 failed: Connection closed before receiving a handshake response ...
the size parameter of the UIGraphicsBeginImageContextWithOptions function is too large, resulting in a memory explosion I use size data, which is about 3 times the height and width of the screen size, that is (3 UIScreen.main.bounds.height,3 UIScree...