当我从twitter的流api读取数据，然后写入xmlfile时。
但是一些特殊的字符，比如�会导致错误（我的意思是当我在chrome中打开那个xml文件时，chrome说那个字符有错误！）
在写入xmlfile之前，我想把这个编码序列（�）转换成真正的字符（'）！
如何实施？
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这是xmlfile内容：
<?xml version="1.0" encoding="UTF-8"?>
<root>
<text>@carlyraejepsen would be a dream if you follow me, please follow me?, I love you so much you're my inspiration</text>
<text>someone please bring me a caramel apple and a mocha from black cat. i'll love you forever</text>
<text>“@G_MartinFlyKick: Marry me Juliet.I love you and that's all I really know.”����������</text>
<text>"I need to see a picture of him cuz Im trying to imagine you guys making love and all I see is u climbing on top of a big question mark"lmao</text>
<text>@District3music hi, I LOVE YOU follow me please? &lt;3 xx 23</text>
<text>RT @syardley_: So appreciative of my family and people I love, wouldn't be where I am without them. #thankful</text>
<text>#DISTRICT3HALLOWEENFOLLOWSPREE #DISTRICT3HALLOWEENFOLLOWSPREE #3EEKERFROMTHENETHERLANDS love you! Please follow ? @District3music x42</text>
<text>Arguably my favorite electronic music producer @Kluteuk is coming back to Toronto on Dec 22nd. So stoked. Guy has made so many tunes I LOVE.</text>
<text>The stakes are high, the water's rough, but this love is ours.</text>
<text>@NiallOfficial Answer me, I love you very much. Venezuela loves. jhgj</text>
<text>Love this shit http://t.co/qSP79NKx</text>
</root>
以下是chrome的错误：
This page contains the following errors:
error on line 5 at column 91: xmlParseCharRef: invalid xmlChar value 55357
Below is a rendering of the page up to the first error.
最佳答案
字符引用�表示代理代码点（u+d83d），因此尝试将其转换为字符是错误的。它不是一个字符，甚至不是半个字符。
您需要追溯到生成引用的点。原因可能是字符编码混乱。在utf-16中，代理代码单元可能会出现，但当数据被解释为字符，例如转换为另一种编码或转换为字符引用时，必须成对处理。