一个不错的vue表单验证插件

　　github文档用着不错，官方的文档例子很简单

<body>
    
    <div id="app">
      <validator name="validation1">
        <form novalidate>
          <div class="username-field">
            <label for="username">username:</label>
            <input id="username" type="text" v-validate:username="['required']">
          </div>
          <div class="comment-field">
            <label for="comment">comment:</label>
            <input id="comment" type="text" v-validate:comment="{ minlength: 2 }">
          </div>
          <div class="errors">
            <p v-if="$validation1.username.required">Required your name.</p>
            <p v-if="$validation1.comment.minlength">Your comment is too long.</p>
          </div>
          <input type="submit" value="send" v-if="$validation1.valid">
        </form>
      </validator>
   
    <script>
     var vm = new Vue({
      el: '#app'
     })
    </script>
</body>

　　直接用就可以了，自己把CSS改一下，就能用在现在的项目上了。