diff --git a/ica-rs/ica_typing.py b/ica-rs/ica_typing.py
index b732c71..7ab5559 100644
--- a/ica-rs/ica_typing.py
+++ b/ica-rs/ica_typing.py
@@ -38,7 +38,18 @@ class ReplyMessage:
 
 
 class SendMessage:
-    ...
+    @property
+    def content(self) -> str:
+        ...
+    @content.setter
+    def content(self, value: str) -> None:
+        ...
+    def with_content(self, content: str) -> "SendMessage":
+        """
+        为了链式调用, 返回自身
+        """
+        self.content = content
+        return self
 
 
 class NewMessage:
@@ -64,7 +75,7 @@ class IcaClient:
     @staticmethod
     async def send_message_a(client: "IcaClient", message: SendMessage) -> bool:
         """
-        仅作占位
+        仅作占位, 不能使用
         (因为目前来说, rust调用 Python端没法启动一个异步运行时
         所以只能 tokio::task::block_in_place 转换成同步调用)
         """
diff --git a/ica-rs/src/py/class.rs b/ica-rs/src/py/class.rs
index 11cd42c..981a8a4 100644
--- a/ica-rs/src/py/class.rs
+++ b/ica-rs/src/py/class.rs
@@ -182,6 +182,20 @@ impl SendMessagePy {
     pub fn __str__(&self) -> String {
         format!("{:?}", self.msg)
     }
+    /// 设置消息内容
+    /// 用于链式调用 
+    pub fn with_content(&mut self, content: String) -> Self {
+        self.msg.content = content;
+        self.clone()
+    }
+    #[getter]
+    pub fn get_content(&self) -> String {
+        self.msg.content.clone()
+    }
+    #[setter]
+    pub fn set_content(&mut self, content: String) {
+        self.msg.content = content;
+    }
 }
 
 impl SendMessagePy {