coderzii
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diff --git a/‎src/main.exe
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diff --git a/‎src/main.rs
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+/target
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+[package]
+name = "gussing_game"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rand = "0.7.0"
+
+
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+use rand::Rng; //trait
+use std::cmp::Ordering;
+use std::io;
+
+fn main() {
+    println!("猜数");
+
+    let secret_number = rand::thread_rng().gen_range(1, 101);
+
+    loop {
+        println!("猜一个数");
+
+        let mut guess_number = String::new();
+
+        //println!("神秘数字是:{}", secret_number);
+
+        io::stdin()
+            .read_line(&mut guess_number)
+            .expect("无法读取行");
+
+        println!("你猜测的数是:{}", guess_number);
+
+        let guess_number: u32 = match guess_number
+            .trim() // \n
+            .parse()
+        {
+            Ok(num) => num,
+            Err(_) => continue,
+        };
+        //.expect("please input a number !");
+
+        match guess_number.cmp(&secret_number) {
+            Ordering::Less => println!("too small !"),
+            Ordering::Greater => println!("too big"),
+            Ordering::Equal => {
+                println!("you win!");
+                break;
+            }
+        }
+    }
+}