$ua->request(POST $url, [ '__VIEWSTATE'=>'/wEPDwUKLTQwMDQ2MTU5OGQYAQUeX19Db250cm9sc1JlcXVpcmVQb3 +N0QmFja0tleV9fFgEFF2N0bDAwJEJvZHkkY3RsMDAkZ2V0cHdk', 'ctl00$Body$ctl00$UsernameTextBox'=>'UserName', 'ctl00$Body$ctl00$PasswordTextBox'=>'PassWord', 'ctl00$Body$ctl00$LoginButton'=>'登录' ] );