bug修改

config/index.js

         target: 'http://localhost:8080', //wf
         // target: 'http://127.0.0.1:8080', 
         // target: 'http://192.168.0.11:8080', //ys
-        // target: 'http://192.168.0.125:8080', //hyq
+        // target: 'http://192.168.0.102:8080', //hyq
         // target: 'http://dev.ycjcjy.com', //frp
         changeOrigin: true, // 如果接口跨域，需要进行这个参数配置
         // pathRewrite: {

src/pages/system/courseManager/courseList/add.vue

           <span>课程主图：<em>*</em></span>
           <div class="flex-item">
             <div>
+              <div class="red-hint">建议上传750*960尺寸的图片</div>
               <el-upload
                 class="avatar-uploader"
                 action='string'