diff --git a/README.md b/README.md
index c7ec114..e0d1aa5 100644
--- a/README.md
+++ b/README.md
@@ -57,6 +57,7 @@ elif '-n' in sys.argv or '--no' in sys.argv:
     do_run = False
 else: # do_run is None
     while (do_run := input("compile? [y/n]").lower()) not in ["y", "n", "yes", "no"]:
+        pass
         # 获取用户输入是否编译
         # get user confirmation to compile or not
     do_run = True if do_run[0] == "y" else False
diff --git a/pdm.lock b/pdm.lock
new file mode 100644
index 0000000..a953a4a
--- /dev/null
+++ b/pdm.lock
@@ -0,0 +1,10 @@
+# This file is @generated by PDM.
+# It is not intended for manual editing.
+
+[metadata]
+lock_version = "4.2"
+cross_platform = true
+groups = ["default"]
+content_hash = "sha256:cb30ff0b06924f6f0d5f726b84c255686a2e277a4180b00b7b6e427c05ca202b"
+
+[metadata.files]