修改

index.html

@@ -15,7 +15,7 @@
         <div class="box1">
             <div class="box2">
                 <input class="countview" :value="countView1+countView2+countView3">
-                <input class="result" disabled v-model="result">
+                <input class="result" v-model="result">
             </div>
             <div class="box3">
                 <button class="numbox" v-for="num in numData" :key="num.id" @click="choose_count(num.value)"