UTF-16也是一种变长编码，对于一个Unicode字符被编码成1至2个码元，每个码元为16位。 基本多语言平面（码位范围U+0000-U+FFFF） 在基本多语言平面内的码位UTF-16编码使用1个码元且其值与Unicode是相等的（不需要转换）。

UTF-8 is also an efficient format used widely in transmissions over the Internet. UTF-16 and UTF-32, which do not appear in Notepad's Save As window, also produce Unicode characters whose byte ...

In the latest Windows 10 Insider build, Microsoft has released a new version of Notepad that includes changes that bring it closer to what we have come to expect from modern text file editors.