fix:默认值判断增加

src/components/PathDetailImage.vue

@@ -127,7 +127,7 @@ function toDetail(i) {
   let isStudy = false;
   let chapterId = props.detail.chapterDtoList[i].id
   console.log(studySetting)
-  if(previewSetting==null){
+  if(previewSetting==null || previewSetting == 0){
     // 如果未设置预览 则只可以看当前关卡 其余关卡不让点击
     if (current.value !== i) {
       ElMessage.warning("当前关卡不可预览");
@@ -139,7 +139,7 @@ function toDetail(i) {
       let lookArr = [];
       lookArr = previewSetting.split(',')
       if((i+1)>=lookArr[0] && (i+1)<=lookArr[1]){
-        if(studySetting!==null){
+        if(studySetting!==null || studySetting!==0){
           let studyArr = [];
           studyArr = studySetting.split(',')
           if((i+1)>=studyArr[0] && (i+1)<=studyArr[1]){