there is a difference of one hour when a timestamp is converted to Beijing on different systems. what is the reason? timestamp: 516466800 MacBook converts from https: tool.lu timestamp to 1986-05-15 00:00:00 system language English region: Chin...
on Android 4.4, the child process is created by the parent process. According to the process id, the child process manually kill the parent process, but the child process is still running and is not killed. As a result, the child process is not re-create...
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Hello, everyone. I have been looking at the multi-level page table of the operating system recently, but I still have some doubts about the multi-level page table. the first-level page table covers all the virtual address space, and some of his table ...
such as the title. later, I thought the Internet speed was slow, but watching the video is very smooth, and the downlink speed can also reach 1m-5m. But the page downloads the file, but only 20k. then I test my mac,git clone to 1m and my Ubuntu16.04,...
when reading the book "operating system now " today, there is a sentence in the introduction to threads on page 53: there are often situations where multiple control threads are running in quasi-parallel in the same address space I would like to as...
RT, in a 64-bit system, assuming that the actual memory is 3GB, what happens if the program requests 6GB memory and writes to the requested memory? ...
for machines with 32-bit operating system and 4G memory, addressing within the range of 4G is supported at most because of 32-bit systems, and since the actual physical memory size is 4G, in this case, the address of virtual memory must exceed 4G. In tha...
the subject uses Mac. I wonder what kind of process the system background is when a software is opened. In addition, why the window can be opened in the same place on the desktop after some software is closed and restarted, and can retain the window size...
problem description recently, in the project, we need to use canvas to drag and drop and zoom the picture, and to be able to draw the path on the picture, but after I drag and drop the path, I will clear the previous path . the environmental backgrou...
if I have only bought a domain name for 3 years, the traffic of this domain name is very high after 3 years, and the domain name service provider increases the price by 100 times. Excuse me, how to deal with it? it is estimated that many Internet star...
after learning for the vue system, start to learn to write some exercise projects, the previous page can not be swayed left and right. So I didn t encounter this kind of problem, but today I downloaded the better-scroll plug-in and started to writ...
recently, I have been learning about crawlers. They usually either climb pictures or climb text. Recently, I thought about climbing the cover and title profile of Douban book page, thinking about saving it together, but I didn t seem to see this method...
for a multi-page project developed using vue-cli3, the configuration of pages is as follows: pages: { index: { entry: . resources src main.js , template: . resources public index.html , filename: in...