公告，群资料

pages/im/group/announceCreate.vue

@@ -2,7 +2,7 @@
     <view class="create">
         <u--textarea v-model="content" count height="200" maxlength="200" placeholder="请输入公告内容"></u--textarea>
 
-        <u-button type="primary" text="发布" @click="onCreate"></u-button>
+        <u-button type="primary" text="发布" :disabled="disabled" @click="onCreate" color="#34CE98"></u-button>
     </view>
 </template>
 
@@ -20,6 +20,11 @@
         },
         onLoad(e) {
             this.targetId = e.targetId
+        },
+        computed: {
+            disabled() {
+                return this.content.length == 0 || this.content.length > 200
+            }
         },
         methods: {
             onCreate() {