diff --git a/.vscode/settings.json b/.vscode/settings.json
index f30c192..914dae3 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -5,6 +5,7 @@
         "xstring": "cpp",
         "xtree": "cpp",
         "xutility": "cpp",
-        "iosfwd": "cpp"
+        "iosfwd": "cpp",
+        "vector": "cpp"
     }
 }
\ No newline at end of file
diff --git a/Algorithm/SequentialSearch.h b/Algorithm/SequentialSearch.h
index bef7ced..28fd335 100644
--- a/Algorithm/SequentialSearch.h
+++ b/Algorithm/SequentialSearch.h
@@ -1,9 +1,7 @@
 // 顺序查找
 int SequentialSearch(vector<int>& v, int k) {
-	int i = 0;
-	for (; i < v.size(); ++i)
-		if (v[i] == k) 
+	for (int i = 0; i < v.size(); ++i)
+		if (v[i] == k)
 			return i;
-	if (i == v.size()) 
-		return -1;
+	return -1;
 }
\ No newline at end of file