增加填写时长的地方

project/qujing/app/AppCurriculumManage/components/Add.vue

@@ -42,6 +42,9 @@
             <el-form-item v-if="form.courseType==1" label="腾讯视频ID" class="w100">
               <el-input v-model="form.videoId" clearable placeholder="请从腾讯视频创作号上获取对应视频id"/>
             </el-form-item>
+            <el-form-item v-if="form.courseType==='1'&&!!form.videoId" label="视频时长" class="w100">
+              <el-input type="number" v-model="form.duration" clearable placeholder="输入视频时长(单位:秒)"/>
+            </el-form-item>
             <el-form-item v-if="form.courseType==='1'&&!form.videoId" label="视频" prop="videoUrl" style="width: 100%;" :rules="[{required: true, message: '请上传视频', trigger: 'change'}]">
               <el-upload :show-file-list="false" ref="upload1" action :http-request="submitUpload" :accept="accept" :limit="1">
                 <div class="video" v-if="!form.videoUrl.length">