xiaopeng5130301994的博客

//课程名         private string coursename;         public string CourseName         {             get { return coursename; }             set             {                 coursename = value;

         private async void PostFun(Uri uri,string postdata)         {             //实现Post数据的访问             //postdata格式：phone=18712345678&password=12345678             try             {