WebClient 远程服务器返回错误: (400) 错误的请求。 直接URL输入就可以，而写代码请求就这样
是通过WEB GET提交存数据到数据库里

直接URL上输入没有任何问题，而用WebClient请求 远程服务器返回错误: (400) 错误的请求

以下是参数GET请求，我直接URL上输入没任何问题，然后写个WebClient DownloadString 就报400错误和以

下链接一模一样。调试发现没有访问到api.ashx，而是直接DownloadString就报400错误了。。

换个其它英文字数却可以，大神们可以试下 以下参数 ，求解决 －－！！！

http://localhost:27052/Api.ashx?name=admin&pwd=admin&acction=9&site=www.sdfa.com&content=%3CP%20align%3Dcenter%3E%3CIMG%20alt%3D%E9%98%BF%E8%81%94%E9%85%8B%E5%85%AC%E5%8F%B8%E6%98%8E%E5%B9%B42%E6%9C%88%E5%B0%86%E5%90%91%E4%BF%84%E5%86%9B%E6%8F%90%E4%BE%9B%E9%A6%96%E6%9E%B6%E2%80%9C%E8%81%94%E5%90%8840%E2%80%9D%20src%3D%22http%3A%2F%2Fimg1.gtimg.com%2Fnews%2Fpics%2Fhv1%2F75%2F123%2F1473%2F95813265.jpg%22%3E%3C%2FP%3E%3CP%20style%3D%22FONT-FAMILY%3A%20%E5%AE%8B%E4%BD%93%3B%20FONT-SIZE%3A%2010pt%22%20align%3Dcenter%3E%E8%B5%84%E6%96%99%E5%9B%BE%EF%BC%9A%E9%80%A0%E5%9E%8B%E5%A5%87%E7%89%B9%E7%9A%84%E8%81%94%E5%90%8840%E6%97%A0%E4%BA%BA%E6%9C%BA%3C%2FP%3E%3CP%20style%3D%22TEXT-INDENT%3A%202em%22%3E%E4%B8%AD%E6%96%B0%E7%BD%9112%E6%9C%883%E6%97%A5%E7%94%B5%E6%8D%AE%3Cspan%20class%3D%22infoMblog%22%3E%E4%BF%84%E6%96%B0%E7%A4%BE%3C%2Fa%3E%3C%2Fspan%3E%E6%8A%A5%E9%81%93%EF%BC%8C%E9%98%BF%E8%81%94%E9%85%8B%E6%97%A0%E4%BA%BA%E7%B3%BB%E7%BB%9F%E5%BC%80%E5%8F%91%E5%95%86Adcom%E5%85%AC%E5%8F%B8(ADCOM%20Systems)%E8%B4%9F%E8%B4%A3%E4%BA%BA%E8%BE%BE%E8%B5%AB%E9%87%8C%E7%A7%B0%EF%BC%8C%E8%AF%A5%E5%85%AC%E5%8F%B82014%E5%B9%B42%E6%9C%88%E5%B0%86%E5%90%91%E4%BF%84%E7%BD%97%E6%96%AF%E5%86%9B%E9%98%9F%E6%8F%90%E4%BE%9B%E9%A6%96%E6%9E%B6%E6%97%A0%E4%BA%BA%E6%9C%BA%E2%80%9C%E8%81%94%E5%90%88-40%E2%80%9D%E8%BF%9B%E8%A1%8C%E6%B5%8B%E8%AF%95%E3%80%82%3C%2FP%3E%3CP%20style%3D%22TEXT-INDENT%3A%202em%22%3E%E6%8A%A5%E9%81%93%E6%8F%B4%E5%BC%95%E8%BE%BE%E8%B5%AB%E9%87%8C%E7%9A%84%E8%AF%9D%EF%BC%9A%E2%80%9C%E7%AC%AC%E4%B8%80%E6%9E%B6%E2%80%98%E8%81%94%E5%90%88-40%E2%80%99%E6%97%A0%E4%BA%BA%E6%9C%BA%E6%98%8E%E5%B9%B42%E6%9C%88%E5%B0%86%E6%8A%B5%E8%BE%BE%E4%BF%84%E7%BD%97%E6%96%AF%E3%80%82%E6%A0%B9%E6%8D%AE%E9%A6%96%E6%89%B9%E6%B5%8B%E8%AF%95%E7%BB%93%E6%9E%9C%EF%BC%8C%E6%97%A0%E4%BA%BA%E6%9C%BA%E5%90%91%E4%BF%84%E4%BE%9B%E5%BA%94%E6%88%96%E5%B0%86%E5%A2%9E%E5%8A%A0%E3%80%82%E2%80%9D%E4%BB%96%E8%BF%98%E5%BC%BA%E8%B0%83%EF%BC%8C%E5%8F%8C%E6%96%B9%E7%AD%BE%E8%AE%A2%E4%BA%86%E5%88%9D%E6%AD%A5%E5%8D%8F%E8%AE%AE%EF%BC%8C%E4%BF%84%E5%8F%AF%E8%83%BD%E8%B4%AD%E4%B9%B0%E9%A6%96%E6%89%B9%E6%97%A0%E4%BA%BA%E6%9C%BA%E3%80%82%3C%2FP%3E%3CP%20style%3D%22TEXT-INDENT%3A%202em%22%3E%E6%8A%A5%E9%81%93%E7%A7%B0%EF%BC%8C%E4%BF%84%E7%BD%97%E6%96%AF%E6%97%A0%E4%BA%BA%E6%9C%BA%E9%A2%86%E5%9F%9F%E4%B8%BB%E8%A6%81%E4%B8%93%E5%AE%B6%E6%9D%B0%E5%B0%BC%E6%96%AF%26%23183%3B%E8%B4%B9%E6%9D%9C%E5%AD%A3%E8%AF%BA%E5%A4%AB%E8%A1%A8%E7%A4%BA%EF%BC%8CADCOM%20Systems%E5%85%AC%E5%8F%B8%E2%80%9C%E5%AF%B9%E4%BF%84%E7%BD%97%E6%96%AF%E5%B8%82%E5%9C%BA%E5%8D%81%E5%88%86%E6%84%9F%E5%85%B4%E8%B6%A3%E2%80%9D%EF%BC%8C%E8%AF%A5%E5%85%AC%E5%8F%B8%E6%98%AF%E5%9C%A8%E4%BF%84%E7%BD%97%E6%96%AFMAKS-2013%E8%88%AA%E5%B1%95%E6%9C%9F%E9%97%B4%E9%A6%96%E6%AC%A1%E5%90%91%E5%9B%BD%E5%A4%96%E5%B1%95%E7%A4%BA%E8%BF%99%E7%A7%8D%E6%97%A0%E4%BA%BA%E6%9C%BA%E3%80%82%3C%2FP%3E%3CP%20style%3D%22TEXT-INDENT%3A%202em%22%3E%E8%B4%B9%E6%9D%9C%E5%AD%A3%E8%AF%BA%E5%A4%AB%E7%A7%B0%EF%BC%9A%E2%80%9C%E5%A6%82%E6%9E%9C%E8%BF%99%E4%B8%AA%E6%97%A0%E4%BA%BA%E6%9C%BA%E7%B3%BB%E7%BB%9F%E8%83%BD%E6%BB%A1%E8%B6%B3%E4%BF%84%E7%BD%97%E6%96%AF%E5%86%9B%E6%96%B9%E8%A6%81%E6%B1%82%EF%BC%8C%E9%82%A3%E4%B9%88%E5%B0%B1%E5%8F%AF%E4%BB%A5%E6%9C%9F%E5%BE%85%E5%83%8F%E4%BF%84%E7%BD%97%E6%96%AF-%E4%BB%A5%E8%89%B2%E5%88%97%E4%BA%A4%E6%98%93%E9%82%A3%E6%A0%B7%EF%BC%8C%E5%9C%A8%E9%A6%96%E6%89%B9%E8%B4%AD%E4%B9%B0%E4%B9%8B%E5%90%8E%EF%BC%8C%E5%8F%8C%E6%96%B9%E5%B0%86%E8%BE%BE%E6%88%90%E5%9C%A8%E4%BF%84%E7%BD%97%E6%96%AF%E7%94%9F%E4%BA%A7%E6%97%A0%E4%BA%BA%E6%9C%BA%E7%9A%84%E4%BA%A4%E6%98%93%E3%80%82%E2%80%9D%3C%2FP%3E%3CP%20style%3D%22TEXT-INDENT%3A%202em%22