小编Bảo*_*ool的帖子

错误:文件格式在Richtextbox中无效.

我的代码在这里:

var webClient = new WebClient(); //Make sure to reference System.Net
richTextBox1.Rtf = webClient.DownloadString("http://koolkool.freevnn.com/tool/Documents/invitePK.rtf")

请帮我.图像错误: