// 复制学生信息
private void CopyStudentInfo()
{
string studetnInfo;
studetnInfo = "学生姓名:" + lblStudentName.Text + "\\r\\n" + "性别:" + ddlSex.SelectValue.ToString() + "\\r\\n" + "个人情况说明:" + txtStudentInfo.text.ToString().Trim();
this.btnCopyStudentInfo.Attributes.Add("onclick", @"javascript:window.clipboardData.setData('Text','" + studetnInfo + "')");
}