fix

src/pages/share/index.vue

 <template>
   <div class="share-pg">
+
+    <GoBack class="goback abs" style="z-index: 100" @click="router.go(-1)" />
+
     <div class="will-copy" ref="src">
       <img class="copy-img" src="/images/share.jpg" alt="" />
       <div class="content txt">
 import { onMounted,watch, ref } from "vue";
 import html2canvas from "html2canvas";
 import { useModel } from "@zjxpcyc/vue-tiny-store";
+import { useRouter } from "vue-router";
+import GoBack from "@/components/GoBack.vue";
 
+const router = useRouter();
 const { user } = useModel("user");
 const imgData = ref();
 const src = ref();
 <style lang="less" scoped>
 .share-pg {
   position: relative;
+  .goback{
+    z-index: 100;
+    left: 10px;
+    top: 10px;
+  }
 
   .will-copy {
     position: relative;