fix:修复中心首页初始化课程总数闪现NaN的问题

src/modules/home/Home.jsx

@@ -30,6 +30,7 @@ class Home extends React.Component {
       unfinishedNum: 0,
       weekVisitCustomerNum: 0,
       incWeekVisitCustomerNum: 0,
+      courseNum: 0,
     };
     this._chart = null;
   }
@@ -100,6 +101,7 @@ class Home extends React.Component {
           trainingPlanNum: res.result.trainingPlanNum,
           weekVisitCustomerNum: res.result.weekVisitCustomerNum,
           incWeekVisitCustomerNum: res.result.incWeekVisitCustomerNum,
+          courseNum: res.result.videoCourseNum + res.result.liveCourseNum + res.result.pictureCourseNum + res.result.offlineCourseNum,
         });
       }
     });
@@ -214,6 +216,7 @@ class Home extends React.Component {
 
   render() {
     const {
+      courseNum,
       examNum,
       incExamNum,
       list,
@@ -304,7 +307,7 @@ class Home extends React.Component {
                 <span className='header-word'>课程总数 (个)</span>
               </div>
 
-              <div className='data-number'>{videoCourseNum + liveCourseNum + pictureCourseNum + offlineCourseNum}</div>
+              <div className='data-number'>{courseNum}</div>
               <div className='data-footer'>
                 <span className='footer-word'>本月新增</span>
                 {incCustomerNum > 0 && <span className='icon iconfont'>&#xe635;</span>}