!390 fix: cron组件中周回显bug

Merge pull request !390 from fuzui/fix_week_echo_in_cron_component

@@ -273,7 +273,7 @@ export default {
           insValue = 5;
         } else {
           this.$refs[refName].checkboxList = value.split(",");
-          insValue = 7;
+          insValue = 6;
         }
       } else if (name == "year") {
         if (value == "") {

@@ -60,7 +60,7 @@
 			<el-radio v-model='radioValue' :label="6">
 				指定
 				<el-select clearable v-model="checkboxList" placeholder="可多选" multiple style="width:100%">
-					<el-option v-for="(item,index) of weekList" :key="index" :label="item.value" :value="item.key">{{item.value}}</el-option>
+					<el-option v-for="(item,index) of weekList" :key="index" :label="item.value" :value="String(item.key)">{{item.value}}</el-option>
 				</el-select>
 			</el-radio>
 		</el-form-item>