diff算法用来计算出Virtual DOM中改变的部分，然后针对该部分进行DOM操作，而不用重新渲染整个页面，渲染整个DOM结构的过程中开销是很大的，需要浏览器对DOM结构进行重绘与回流，而diff算法能够使得操作过程中只更新修改的那部分DOM结构而不更新整个DOM，这样能够最小化操作DOM结构，能够最大程度上减少浏览器重绘与回流的规模。
Vimdiffworks in an advanced manner in comparison todiffutility. It enables a user to edit up to four versions of a file while showing their differences. When you run it,Vimdiffopens two or three or four files usingvim text editor. Vimdiff Edit Multiple Files for Differences Visit Homepage:...
sudo apt-get install stress #ubuntu系统 yum install stress #Centos系统 然后进行 CPU 和内存的测试...
sed(Stream EDitor,流编译器)⟳ diff(DIFFerence,不同,差异)⟳ 比较文本文件,并找出它们的不同 diff [options] 文件1 文件2 \|表示前后2个文件内容有不同 <表示后面文件比前面文件少了1行内容 >表示后面文件比前面文件多了1行内容 参数 -y或--side-by-side:以并列的方式显示文件的异同之处。 -W<宽度...
仅处理归档中每个文件的第 NUMBER个事件;仅当与以下子命令 --delete, --diff, --extract 或是 --list中的一个联合使用时,此选项才有效。而且不管文件列表是以命令行形式给出或是通过-T 选项指定的;NUMBER 值默认为 1 --sparse-version=MAJOR[.MINOR] 设置所用的离散格式版本(隐含--sparse) -S, --sparse...
data) if start == 0: start = event.cur_ts ts = event.cur_ts - start printb(b"At time %.2f s: multiple syncs detected, last %s ms ago" % (ts, event.diff_ts / 1000000)) # loop with callbackto print_event b["events"].open_perf_bufferprint_event) while1: b.perf_...
Used to call the cmp program for bzip2 compressed files. bzdiff Used to call the diff program for bzip2 compressed files. bzgrep Used to call grep for bzip2 compressed files. bzip2 A block-sorting file compressor used to shrink given files. bzless Used to apply ‘less’ (show info one pa...
To see the differences between two text files, use diff: 要查看两个文本文件之间的差异,使用diff命令: $ diff file1 file2 Several options can control the format of the output, and the default output format is often the most comprehensible for human beings. However, most programmers prefer the ...
You can view multiple files at the same time. Following example prints the content of file1 followed by file2 to stdout. $ cat file1 file2 While displaying the file, following cat -n command will prepend the line number to each line of the output. $ cat -n /etc/logrotate.conf 1 /...
Rocky linux 也更新到 9 了,准备试试可以用了不,还是继续用 xfce4 界面。官方有提供 xfce4 版的 Rocky linux,直接下来装就好:各个版本下载地址。题外话,...