flask一个表单，两个按钮

if form.validate_on_submit(): #验证是否通过
    newstitle =form.newstitle.data
    if form.getwords.data:  # 按钮1
        stopwords=form.stopwords.data.split(',')
        content=form.newscontent.data
        wordlist=get_wordlist(content,int(form.sumselect.data),stopwords)
        return render_template('input.html',form=form)
    else:  # 按钮2
        print('data='+str(form.selectwords.data))
        return  'You click the "save" button.'
else:
    return '验证有误'