Whitespace and line Breaks的意思|示意

Conventions aimed at readability includes such things as the use of line breaks, treatment of whitespace like tabs and Spaces, and the formatting of conditional statements.

约定的可读性目标包括使用断行、将空格当做制表符和空白对待，以及条件语句的格式。

The problem is, all of the whitespace, line breaks, and comments that you add to your code increase the file size of the script and the load time of your application.

问题是，加入的所有空格、分行符、注释都增加了脚本文件大小和应用程序的加载时间。

Write a program that reads a file, breaks each line into words, strips whitespace and punctuation from the words, and converts them to lowercase.

写一个读取文件的程序，把每一行拆分成一个个词，去掉空白和标点符号，然后把所有单词都转换成小写字母的。