style：表管理-编辑时编码不允许修改

src/views/mes/energydevice/EnergyDeviceForm.vue

@@ -8,7 +8,7 @@
       v-loading="formLoading"
     >
       <el-form-item label="表编码" prop="code">
-        <el-input v-model="formData.code" placeholder="请输入表编码" />
+        <el-input v-model="formData.code" placeholder="请输入表编码" :disabled="formType === 'update'" />
       </el-form-item>
 
       <el-form-item label="表名称" prop="name">