Replacing Spaces with commas and vice versa can be done in a single scan over the string, and the control characters are injected at the same time.

只需对字符串扫描一次，就可以用逗号替换空格，反之亦然，同时还可以加入控制字符。

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Instead of lines of code with calls to String methods, the new approach implies delegating the core of the parser logic and replacing it with a regexp library.

新的方法将取消编写用来调用String方法的多行代码，它意味着将解析器逻辑的核心委托出去，并替换为regexp库。

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This technique is good for fixing a typo or otherwise replacing a recurring word, phrase, or other string in a file or group of files.

此项技术对于修复输入错误或替换一个或一组文件中的重复单词、短语或其他内容非常理想。

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