diff --git a/src/project/qujing/AppLegalLearning/classDetail.vue b/src/project/qujing/AppLegalLearning/classDetail.vue
index 1d732fa..97b4d0b 100644
--- a/src/project/qujing/AppLegalLearning/classDetail.vue
+++ b/src/project/qujing/AppLegalLearning/classDetail.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="classDetail">
     <div class="media">
-      <img src="./img/bg.png" alt="">
+      <img src="./img/jige.png" alt="">
       <!-- <video src="./img/2676.mp4" controls/> -->
     </div>
 
diff --git a/src/project/qujing/AppLegalLearning/testForm.vue b/src/project/qujing/AppLegalLearning/testForm.vue
index 7c8f7ea..577366b 100644
--- a/src/project/qujing/AppLegalLearning/testForm.vue
+++ b/src/project/qujing/AppLegalLearning/testForm.vue
@@ -140,12 +140,30 @@ export default {
     confirm() {
       uni.navigateTo({url: './result'})
     },
+
+    /*
+   给定一个字符串 s ，找到 它的第一个不重复的字符，并返回它的索引 。如果不存在，则返回 -1 。
+   s = "leetcode" . => 0
+   s = "loveleetcode" => 2
+  */
+    firstUniqChar(str) { 
+      for(let i=0; i<=str.length; i++) {
+        // let sum = 0;
+        for(let x=0;x<str.length;x++) {
+          if(str[i] === str[x] && i!=x) {
+            console.log(i);
+          }
+        }
+      }
+      // return -1
+    }
   },
   onReachBottom() {
     this.current ++;
   },
   onLoad() {
     // this.createdTime = Date.parse(new Date())
+    this.firstUniqChar('leetcode')
   }
 }
 </script>