updates

src/modules/exam/components/Finished.vue

 <template>
   <el-card>
     <div class="finished_title">{{ params.name }}</div>
-    <div class="login_time item">登录时间段：{{ params.start_time }} - {{ params.start_time }}</div>
+    <div class="login_time item">登录时间段：{{ params.start_time }} - {{ params.end_time }}</div>
     <div class="check_exam item">选择考试：{{ checkedPapers.toString() }}</div>
     <div class="exam_setting item">
       考试配置：<el-button v-show="configs.enabled_ip_limit === true">限定登录位置</el-button>