From 9751df06b93ebb00c1227ed8bad5bb9f2a7162d3 Mon Sep 17 00:00:00 2001
From: fw_qaq <82551626+Jack-Zhang-1314@users.noreply.github.com>
Date: Sat, 26 Nov 2022 12:52:50 -0500
Subject: [PATCH] doc: update rust.md (#178)

* doc: match let

* update
---
 docs/rust.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/docs/rust.md b/docs/rust.md
index 68c0913..4cd1d2a 100644
--- a/docs/rust.md
+++ b/docs/rust.md
@@ -853,12 +853,25 @@ let (x, _, y) = (1, 2, 3);
 println!("{x},{y}");
 ```
 
+----
+
+```rust
+fn get_count_item(s: &str) -> (&str, &str) {
+    let mut it = s.split(' ');
+    let (Some(str1),Some(str2)) = (it.next(),it.next()) else {
+        panic!("Can't segment count item pair");
+    };
+    (str1, str2)
+}
+```
+
 ### 函数中的模式匹配
 
 ```rust
 fn add((x, y): (i32, i32)) -> i32 {
     x + y
 }
+
 fn main(){
   let sum = add(1, 2);
   println!("{sum}");