如何Debug

$ npm run dev

vue.esm.js?65d7:434 [Vue warn]: Property or method "博客详情页" is not defined on
the instance but referenced during render. Make sure to declare reactive data
properties in the data option.

found in

---> <Blog> at /workspace/test_vue_0613/src/components/Blog.vue
       <App> at /workspace/test_vue_0613/src/App.vue
         <Root>

  Error compiling template:

    <div class='logo'>
      <img src='http://siweitech.b0.upaiyun.com//image/570/siwei.me_header.png'/>
    </div>
  <template>
  <script>
  </script>
  - Component template should contain exactly one root element. If you are using v-if
  on multiple elements, use v-else-if to chain them instead.
  - Templates should only be responsible for mapping the state to the UI. Avoid
  placing tags with side-effects in your templates, such as <script>, as they
  will not be parsed.
  - tag <template> has no matching end tag.

@ ./src/components/Logo.vue 6:2-177
@ ./~/babel-loader/lib!./~/vue-loader/lib/selector.js?type=script&index=0!./src/components/BlogList.vue
@ ./src/components/BlogList.vue
@ ./src/router/index.js
@ ./src/main.js
@ multi ./build/dev-client ./src/main.js