From 4fa9a4328359e54d0fad34f1bd5abca06d066af4 Mon Sep 17 00:00:00 2001
From: jankincai <caizhengxin@bolean.com>
Date: Fri, 25 Oct 2024 15:12:14 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0Rust=E8=AF=AD=E8=A8=80?=
 =?UTF-8?q?=E4=BE=8B=E5=AD=90?=
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---
 rust/complex_code.rs | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 rust/complex_code.rs

diff --git a/rust/complex_code.rs b/rust/complex_code.rs
new file mode 100644
index 0000000..d789e4d
--- /dev/null
+++ b/rust/complex_code.rs
@@ -0,0 +1,43 @@
+fn jankincai_1() -> Option<u8> {
+    Some(1)
+}
+
+fn jankincai_2() -> Option<u8> {
+    Some(2)
+}
+
+
+fn jankincai_3() -> Option<u8> {
+    Some(3)
+}
+
+
+fn jankincai() -> Option<u8> {
+    // 这只是一个项目里面抽出来的简单例子，实际对于刚入门Rust程序员，可能会忽视(?)符号的作用。
+
+    // 正解
+    // Some(jankincai_1()? + jankincai_2()? + jankincai_3()?)
+
+    // 明明可以写的很简洁
+    let v1 = match jankincai_1() {
+        Some(v) => v,
+        None => return None,
+    };
+
+    let v2 = match jankincai_2() {
+        Some(v) => v,
+        None => return None,
+    };
+
+    let v3 = match jankincai_3() {
+        Some(v) => v,
+        None => return None,
+    };
+
+    Some(v1 + v2 + v3)
+}
+
+
+fn main() {
+    println!("{:?}", jankincai());
+}
-- 
Gitee