您的代码没有问题，因为\ Ufffd是Ã而不是è的unicode.表示您的服务器向您返回了错误的值. è的正确unicode是\ U00e8，您可以在此处找到它，并找到它. 此处.我希望这能解决您的问题.

There is no problem with your code because \Ufffd is unicode for � and not for è. Means your server is returning you the wrong value. the correct unicode for è is \U00e8 you can find it here, and for � find here. I hope this will solve your problem.