审批编号增加长度限制

src/components/page/createData.vue

@@ -2,7 +2,7 @@
   <el-dialog :title="title" :visible.sync="showModal" width="700px" @close="close" center>
     <el-form ref="form" :model="form" label-width="150px" size="medium " :rules="rules">
       <el-form-item label="审批编号" prop="dingdingNumber">
-        <el-input style="width:220px" :disabled="handleType=='2'" v-model="form.dingdingNumber" placeholder="请输入内容"></el-input>
+        <el-input style="width:220px" :disabled="handleType=='2'" :maxlength="21" v-model="form.dingdingNumber" placeholder="请输入内容"></el-input>
       </el-form-item>
 
       <el-form-item label="申请日期" prop="dingdingDate">