优化

unpackage/dist/dev/mp-weixin/pages/index/chat/messageComponent/textmessage.js

@@ -13,12 +13,27 @@ const _sfc_main = {
     }
   },
   methods: {
-    // 方法定义
+    handleCopy() {
+      common_vendor.index.setClipboardData({
+        data: this.messagetext,
+        success: () => {
+          common_vendor.index.showToast({
+            title: "复制成功",
+            icon: "success",
+            duration: 1500
+          });
+        },
+        fail: (err) => {
+          common_vendor.index.__f__("error", "at pages/index/chat/messageComponent/textmessage.vue:33", "复制失败:", err);
+        }
+      });
+    }
   }
 };
 function _sfc_render(_ctx, _cache, $props, $setup, $data, $options) {
   return {
-    a: common_vendor.t($props.messagetext)
+    a: common_vendor.t($props.messagetext),
+    b: common_vendor.o((...args) => $options.handleCopy && $options.handleCopy(...args))
   };
 }
 const Component = /* @__PURE__ */ common_vendor._export_sfc(_sfc_main, [["render", _sfc_render], ["__scopeId", "data-v-b62657a0"]]);

unpackage/dist/dev/mp-weixin/pages/index/chat/messageComponent/textmessage.wxml

@@ -1 +1 @@
-<view class="messagetext data-v-b62657a0">{{a}}</view>
+<view class="messagetext data-v-b62657a0" bindlongpress="{{b}}">{{a}}</view>

unpackage/dist/dev/mp-weixin/pages/index/chat/messageComponent/textmessage.wxss

@@ -1,7 +1,7 @@
 
-.messagetext.data-v-b62657a0{
-        font-size: 34rpx;
-        color: #333;
-        letter-spacing: 1rpx;
-        padding: 19rpx 30rpx 19rpx 30rpx;
+.messagetext.data-v-b62657a0 {
+  font-size: 34rpx;
+  color: #333;
+  letter-spacing: 1rpx;
+  padding: 19rpx 30rpx 19rpx 30rpx;
 }