问题是因为您没有给任何输入字段一个名称。
app.post('/signup', function(req,res){ console.log(req.body);})返回值：
{}如果将表单编辑为以下内容：
div form(action='/signup',method='post') div(data-role='fieldcontain') fieldset(data-role='controlgroup') label(for='email') emailinput(id='email',type='text',value='',placeholder='@',name='email') div#passworddiv(data-role='fieldcontain') fieldset(data-role='controlgroup') label(for='password') passwordinput(id='password',type='password',value='',placeholder='',name='password') div(id='hiddendiv',data-role='fieldcontain') fieldset(data-role='controlgroup') label(for='hidden_password') passwordinput(id='hidden_password',type='text',value='',placeholder='',name='password2') div(data-role='fieldcontain') fieldset(data-type='vertical', data-role='controlgroup') label(for='showpass') show password input(id='showpass',type='checkbox') div(data-role='fieldcontain') input(type='submit',value='Sign Up',data-transition='fade', data-theme='c')
输入一些数据后，
app.post('/signup', function(req,res){ console.log(req.body);})返回：
{ email: 'testing@fake.com', password: 'asdf', password2: 'asdf' }
