本文介绍了如何编码U + FFFD以做替换？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
在一个文本文件中，我从一个我不能控制的源获得，并且哪个文本内容周期性地改变，并且我必须通过重新下载和处理来补偿，char U + FFFD经常（但不总是）
In a text file I obtain from a source I do not control, and which text content changes periodically and I have to compensate by re-downloading and processing, the char U+FFFD occurs frequently (but not always) when what is meant is the single quote or ' character.
如何对替换操作进行编码，以便用C＃中的实际单引号替换U + FFFD。我想象类似：
How can I encode a replace operation so as to replace the U+FFFD with an actual single-quote in C#. I envision something like:
string s = s.Replace("U+FFFD", "'");
显然，我应该使用处理char的重载，但是我不知道如何编码U + FFFD，或者这个单引号！
Clearly I should use the overload that deals with char, but I am not sure how to encode the U+FFFD, or for that matter, the single quote!
推荐答案
string s = s.Replace('\uFFFD','\'');
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