diff --git a/src/algorithms/randomness/rand-range.zh.md b/src/algorithms/randomness/rand-range.zh.md
index 0ffc0e2..e20b020 100644
--- a/src/algorithms/randomness/rand-range.zh.md
+++ b/src/algorithms/randomness/rand-range.zh.md
@@ -11,8 +11,8 @@ use rand::Rng;
 
 fn main() {
     let mut rng = rand::thread_rng();
-    println!("Integer: {}", rng.gen_range(0, 10));
-    println!("Float: {}", rng.gen_range(0.0, 10.0));
+    println!("Integer: {}", rng.gen_range(0 .. 10));
+    println!("Float: {}", rng.gen_range(0.0 .. 10.0));
 }
 ```