fix: 创建产品时截取起止位置添加截取示例

@@ -137,6 +137,7 @@ export const formSchemas = (deviceTypeStr: string): FormSchema[] => {
         values[FormFieldsEnum.AuthType] === TCPProtocolAccessAuthTypeEnum.DataCombination,
       valueField: 'value',
       changeEvent: 'update:value',
+      helpMessage: ['截取示例："ABCD".substring(0,2) 截取后的值为"AB"'],
       dynamicRules: ({ values }) => [
         {
           required: true,

@@ -18,7 +18,7 @@
     schemas: formSchemas(serviceType.value),
     showActionButtonGroup: false,
     layout: 'horizontal',
-    labelWidth: 100,
+    labelWidth: 140,
   });
 
   const { updateSchema } = formActionType || {};