解决safari浏览器无法复制问题

src/views/yqrange/live-manage.vue

@@ -1040,8 +1040,31 @@ export default {
       } else {
         txt.value = this.audienceUrl;
       }
-      txt.select(); //选择对象
-      document.execCommand("copy");
+      // if (navigator.userAgent.match(/(iPhone|iPod|iPad|Mac);?/i)) {
+      if (navigator.userAgent.indexOf("Safari") > -1 && navigator.userAgent.indexOf("Chrome") < 1) {
+        var el = document.createElement('input');
+        el.value = txt.value;//要复制的内容
+        el.style.opacity = '0';
+        document.body.appendChild(el);
+        var editable = el.contentEditable;
+        var readOnly = el.readOnly;
+        el.contentEditable = true;
+        el.readOnly = false;
+        const range = document.createRange();
+        range.selectNodeContents(el);
+        var sel = window.getSelection();
+        sel.removeAllRanges();
+        sel.addRange(range);
+        el.setSelectionRange(0, 999999);
+        el.contentEditable = editable;
+        el.readOnly = readOnly;
+        var ret = document.execCommand('copy');
+        el.blur();
+      }
+      else {
+        txt.select(); //选择对象
+        document.execCommand("copy");
+      }
 
       vm.$message({
         type: "success",