add rust lang to repo by add assets/mini-redis

zh-CN/assets/mini-redis/examples/sub.rs

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+//! Subscribe to a redis channel example.
+//!
+//! A simple client that connects to a mini-redis server, subscribes to "foo" and "bar" channels
+//! and awaits messages published on those channels
+//!
+//! You can test this out by running:
+//!
+//!     cargo run --bin mini-redis-server
+//!
+//! Then in another terminal run:
+//!
+//!     cargo run --example sub
+//!
+//! And then in another terminal run:
+//!
+//!     cargo run --example pub
+
+
+
+use mini_redis::{client, Result};
+use tokio_stream::StreamExt;
+#[tokio::main]
+pub async fn main() -> Result<()> {
+    // Open a connection to the mini-redis address.
+    let client = client::connect("127.0.0.1:6379").await?;
+
+    // subscribe to channel foo
+    let mut subscriber = client.subscribe(vec!["foo".into()]).await?;
+    let messages = subscriber.into_stream();
+    tokio::pin!(messages);
+    // await messages on channel foo
+    while let Some(msg) = messages.next().await {
+        println!("got = {:?}", msg);
+    }
+
+    Ok(())
+}