hw-ruby-intro

<p> 测试结果如下 </p> <p> <img src="/files/uploads/image/201710/6af719f3e826.PNG" title="image" alt="image" /><img src="/files/uploads/image/201710/42d5cfa9f690.PNG" title="image" alt="image" /><img src="/files/uploads/image/201710/0f02676238d6.PNG" title="image" alt="image" /> </p>