From 752dfce9a87e5411640a460ad70a765ec36527dc Mon Sep 17 00:00:00 2001
From: shikong <919411476@qq.com>
Date: Sun, 2 Jun 2024 21:15:43 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=206.flow=5Fand=5Fcontrol=20?=
 =?UTF-8?q?=E6=B5=81=E7=A8=8B=E6=8E=A7=E5=88=B6?=
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---
 6.flow_and_control/src/main.rs | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/6.flow_and_control/src/main.rs b/6.flow_and_control/src/main.rs
index 01786e7..993e6ee 100644
--- a/6.flow_and_control/src/main.rs
+++ b/6.flow_and_control/src/main.rs
@@ -31,4 +31,36 @@ fn main() {
 
     println!("当随机生成的数 >={} 且 <= {}时结束", min_num,max_num);
     println!("最终的随机数为: {}", num);
+
+    println!("{}", "=".repeat(50));
+
+    // 使用 loop 实现 随机生成 5 次随机数并打印过程
+    let mut counter = 0;
+    let mut vec:Vec<i32> = vec!();
+    let result = loop {
+        counter += 1;
+        num = fn_rand_num();
+        vec.push(num);
+        println!("随机数为: {}", num);
+        if counter == 5 {
+            // 可使用 break 退出循环并返回结果
+            break num;
+        }
+    };
+    println!("最终的随机数为: {}", result);
+
+    println!("{}", "=".repeat(50));
+
+    // for 循环遍历 vec 并打印
+    for num in &vec {
+        println!("vec 中的随机数为: {}", num);
+    }
+
+    println!("{}", "=".repeat(50));
+
+    // 切片获取 vec 中最后两个元素
+    let slice = &vec.as_slice()[vec.len()-2..vec.len()];
+    for x in slice {
+        println!("slice 中的元素为: {}", x);
+    }
 }