Java： PrintWriter.write 向文本文件中写入换行。

最新推荐文章于 2025-10-26 00:44:29 发布

原创最新推荐文章于 2025-10-26 00:44:29 发布 · 1.3w 阅读

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#java #newline #file

本文介绍了一个在使用Java进行文件操作时遇到的问题：如何正确地在目标文件中插入换行符。作者最初尝试使用pw.writer(/n); 和 pw.write(/n/r); 进行换行，但均未成功。最终通过同事的帮助得知正确的换行写入方式为pw.write(/r/n);。

Today I use java to parse a file and get some special content and write the content to another file.
I met a strange problem that when I use pw.writer("/n"); to write a newline, it failed. I also tried pw.write("/n/r"); but failed again.
I talked with my colleague and fine that:

if you want to write a new line to a plain-text document, the code must be like this:

pw.write("/r/n");