Angular2 material selectbox

Question

I learn angular2 with it's material design. I use md-select module for material and have code

 <md-select>
    <md-option value="1">1</md-option>
    <md-option value="2">2</md-option>
    <md-option value="3">3</md-option>
    <md-option value="4">4</md-option>
  </md-select>

But I have

I use this documetnation

Answer 1

您缺少“值”周围的括号，它应该是：

...<md-option [value]="1">1</md-option>...