用户名称不能修改

@@ -222,7 +222,7 @@
             </el-form-item>
             </el-form-item>
           </el-col>
           </el-col>
           <el-col :span="12">
           <el-col :span="12">
-            <el-form-item label="用户名称" prop="userName">
+            <el-form-item v-if="form.userId == undefined" label="用户名称" prop="userName">
               <el-input v-model="form.userName" placeholder="请输入用户名称" />
               <el-input v-model="form.userName" placeholder="请输入用户名称" />
             </el-form-item>
             </el-form-item>
           </el-col>
           </el-col>