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这是什么错误？我正在编写一个新程序，但我看到一个错误，我不知道它是什么！！http://rozup.ir/up/salardesigner/Pictures/eror.png
http://rozup.ir/up/salardesigner/Pictures/eror.png
您试图替换""为""- 这是非法的。
""
消除.Replace("", "");
.Replace("", "");