✅ 内测版通过测试

memdb/src/main.cpp

@@ -0,0 +1,13 @@
+#include <bits/stdc++.h>
+#include "main/memdb.cpp"
+using namespace std;
+Memdb<string,string> testdb(10);
+int main(){
+    testdb.insert_("key1","value1");
+    auto pack=testdb.search_("key1");
+    cout<<(pack==nullopt?"未找到":pack.value())<<endl;
+    this_thread::sleep_for(std::chrono::seconds(10));
+    auto pack2=testdb.search_("key1");
+    cout<<(pack2==nullopt?"未找到":pack2.value())<<endl;
+    return 0;
+}