improvement: 优化

src/pages/raffle.wpy

@@ -238,10 +238,10 @@
         <view>
           <input type="text" class="inner-input" v-model="code">
         </view>
-        <view class="error-text" v-show="isError">邀请码错误，请重新输入</view>
+        <view class="error-text" v-show="isError">{{errorText}}</view>
         <view class="inner-footer">
           <view class="cancel button" bindtap="closeModal">内测结束再抽</view>
-          <view class="confirm button" bindtap="checkCode">确定</view>
+          <view class="confirm button" bindtap="checkCode">{{errorBtn}}</view>
         </view>
       </view>
     </view>
@@ -270,6 +270,8 @@
       innerActivity: '',
       isError: false,
       code: '',
+      errorText:'',
+      errorBtn:'确定',
     },
     methods: {
       check() {
@@ -372,16 +374,27 @@
       },
       checkCode () {
         if(this.code === '') {
+          this.errorText = '请输入邀请码';
           this.isError = true;
           return;
         }
+        if(this.errorBtn !== '确定') {
+          return;
+        }
+        this.errorBtn = '验证中...';
         checkInnerCode({code: this.code}).then(data => {
+          this.errorBtn = '确定';
           if (+data.checkCode === 0) {
             this.closeModal();
             this.confirmRaff();
           } else {
+            let index = data.checkCode+2;
+            let mesg = ['邀请码错误，请重新输入','该邀请码已被使用，请重新输入']
+            this.errorText = mesg[index];
             this.isError = true;
           }
+        }).catch(()=>{
+          this.errorBtn = '确定';
         });
       }
     },