文本内容 是 IOS端 的emoji表情通过编码保存在mysql数据库中 如下：<br/>
This is a good place\ud83d\udc4f. Please join us\ud83d\udc68\u200d\ud83d\udc69\u200d\ud83d\udc67\u200d\ud83d\udc66\ud83d\udc68\u200d\ud83d\udc68\u200d\ud83d\udc67\u200d\ud83d\udc66\ud83d\udc68\u200d\ud83d\udc67\u200d\ud83d\udc66
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通过这个 ASCII to native 解析可以查看效果 http://tool.oschina.net/encode?type=3
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解析之后
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This is a good place
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