更新部分功能

src/pages/supplier/supplierMessage/index.tsx

@@ -115,10 +115,10 @@ const SupplierMessage: React.FC = () => {
     <>
       <Form form={form} layout="inline" style={{ marginBottom: 12 }}>
         <Form.Item name="content" label="消息内容">
-          <Input placeholder="请输入" style={{ width: 220 }} />
+          <Input placeholder="请输入消息内容" style={{ width: 220 }} maxLength={50} />
         </Form.Item>
         <Form.Item name="type" label="业务类型">
-          <Select style={{ width: 200 }}>
+          <Select style={{ width: 200 }} placeholder="请选择业务类型">
             {messageTypeOptions.map(opt => (
               <Select.Option key={opt.value} value={opt.value}>{opt.label}</Select.Option>
             ))}