feat:处理首页的缺省图

src/modules/home/Home.jsx

@@ -427,8 +427,8 @@ class Home extends React.Component {
               <Choose>
                 <When condition={_.isEmpty(list)}>
                   <div className='study-empty'>
-                    <img src='https://image.xiaomaiketang.com/xm/52dmait5Bx.png' alt='' />
-                    <div>暂无课程上榜</div>
+                    <img src='https://image.xiaomaiketang.com/xm/fFnpKMJD6x.png' alt='' />
+                    <div className="text">暂无学员上榜</div>
                   </div>
                 </When>
                 <Otherwise>

src/modules/home/Home.less

@@ -238,13 +238,13 @@
           margin-top: 102px;
           img {
             display: block;
-            width: 100px;
-            height: 100px;
+            width: 150px;
+            height: 150px;
             margin: 0 auto 8px;
           }
           div {
             text-align: center;
-            color: #333;
+            color: #999;
           }
         }
         .circle-box {