diff --git a/db/db_impl.cc b/db/db_impl.cc
index 0d5e730..d66a01c 100644
--- a/db/db_impl.cc
+++ b/db/db_impl.cc
@@ -1167,8 +1167,8 @@ Status DBImpl::Get(const ReadOptions& options, const Slice& key,
   if(s.ok()){
     auto a = env_->GetCurrentTime();
     auto b = GetTS(value);
-    std::cout<< "read when      " << a<<std::endl;
-    std::cout<< "read timestamp "<<b << std::endl;
+//    std::cout<< "read when      " << a<<std::endl;
+//    std::cout<< "read timestamp "<<b << std::endl;
     if(env_->GetCurrentTime() > GetTS(value)){
       return Status::Expire("Expire",Slice());
     }
@@ -1211,6 +1211,7 @@ Status DBImpl::Put(const WriteOptions& o, const Slice& key, const Slice& val) {
 }
 Status DBImpl::Put(const WriteOptions& options, const Slice& key,
                    const Slice& value, uint64_t ttl) {
+
   return DB::Put(options, key, value,ttl);
 }
 
@@ -1514,6 +1515,7 @@ void DBImpl::AppendTS(const Slice& val, std::string* val_with_ts,uint64_t ttl) {
 
 uint64_t DBImpl::GetTS(const std::string* val) {
     uint64_t expiration_time;
+    //auto expiration_time =  DecodeFixed64(reinterpret_cast<const char*>(val));
     memcpy(&expiration_time, val->data() + val->size() - sizeof(uint64_t), sizeof(uint64_t));
     return expiration_time;
 }
@@ -1536,15 +1538,15 @@ Status DB::Put(const WriteOptions& options, const Slice& key,
 
   uint64_t expiration_time = std::chrono::duration_cast<std::chrono::milliseconds>(
                                  std::chrono::system_clock::now().time_since_epoch())
-                                 .count() + ttl;
+                                 .count() + ttl * 1000;
 
   // 追加原始 value 到 val_with_ts
   val_with_ts.append(value.data(), value.size());
 
   // 将 expiration_time 追加到 val_with_ts
   val_with_ts.append(reinterpret_cast<const char*>(&expiration_time), sizeof(expiration_time));
-  std::cout<<"PUT"<<std::endl;
-  std::cout << "timestamp: " << expiration_time << std::endl;
+//  std::cout<<"PUT"<<std::endl;
+//  std::cout << "timestamp: " << expiration_time << std::endl;
   //"a\323='\277\222\001\000"
   WriteBatch batch;
   batch.Put(key, Slice(val_with_ts));
diff --git a/test/db_test2.cc b/test/db_test2.cc
index 36ed8f6..7603355 100644
--- a/test/db_test2.cc
+++ b/test/db_test2.cc
@@ -1,21 +1,12 @@
 #include "leveldb/db.h"
 #include "leveldb/filter_policy.h"
-
-#include "leveldb/env.h"
-#include "leveldb/db.h"
-
-
-using namespace leveldb;
-
-constexpr int value_size = 2048;
-constexpr int data_size = 128 << 20;
-
 #include <iostream>
 #include <cstdlib>
 #include <ctime>
-
 using namespace leveldb;
 
+constexpr int value_size = 2048;
+constexpr int data_size = 256 << 20;
 
 // 3. 数据管理（Manifest/创建/恢复数据库）
 Status OpenDB(std::string dbName, DB **db) {
@@ -27,48 +18,31 @@ Status OpenDB(std::string dbName, DB **db) {
 
 // 1. 存储（数据结构与写入）
 // 4. 数据合并（Compaction）
-//void InsertData(DB *db) {
-//  WriteOptions writeOptions;
-//  int key_num = data_size / value_size;
-//  srand(static_cast<unsigned int>(time(0)));
-//
-//  for (int i = 0; i < key_num; i++) {
-//    int key_ = rand() % key_num+1;
-//    std::string key = std::to_string(key_);
-//    std::string value(value_size, 'a');
-//    db->Put(writeOptions, key, value);
-//  }
-//}
-
-void InsertData(DB *db, uint64_t ttl/* second */) {
+void InsertData(DB *db) {
   WriteOptions writeOptions;
   int key_num = data_size / value_size;
-  srand(static_cast<unsigned int>(time(0)));
+  srand(0);
 
   for (int i = 0; i < key_num; i++) {
     int key_ = rand() % key_num+1;
-    key_ = 1;
     std::string key = std::to_string(key_);
     std::string value(value_size, 'a');
-    db->Put(writeOptions, key, value, ttl);
-    std::cout << "time to alive" << ttl << std::endl;
-    break;
+    db->Put(writeOptions, key, value);
   }
 }
+
 // 2. 数据访问（如何读数据）
 void GetData(DB *db, int size = (1 << 30)) {
   ReadOptions readOptions;
   int key_num = data_size / value_size;
-  
+
   // 点查
-  srand(static_cast<unsigned int>(time(0)));
+  srand(0);
   for (int i = 0; i < 100; i++) {
     int key_ = rand() % key_num+1;
-
     std::string key = std::to_string(key_);
     std::string value;
     db->Get(readOptions, key, &value);
-    //break;
   }
 
   // 范围查询
@@ -82,54 +56,16 @@ void GetData(DB *db, int size = (1 << 30)) {
 
 int main() {
 
-//  DB *db;
-//  if(OpenDB("testdb", &db).ok()) {
-//    uint64_t ttl = 20;
-//
-//    InsertData(db, ttl);
-//    delete db;
-//  }
-//
-//  if(OpenDB("testdb", &db).ok()) {
-//    GetData(db);
-//    delete db;
-//  }
-//
   DB *db;
-  if(OpenDB("testdb", &db).ok() == false) {
-    std::cerr << "open db failed" << std::endl;
-    abort();
+  if(OpenDB("testdb", &db).ok()) {
+    InsertData(db);
+    delete db;
   }
 
-  uint64_t ttl = 200;
-
-  InsertData(db, ttl);
-
-  ReadOptions readOptions;
-  Status status;
-  int key_num = data_size / value_size;
-  srand(static_cast<unsigned int>(time(0)));
-  for (int i = 0; i < 100; i++) {
-    int key_ = rand() % key_num+1;
-    key_ = 1;
-    std::string key = std::to_string(key_);
-    std::string value;
-    status = db->Get(readOptions, key, &value);
-    assert(status.ok());
-    break;
+  if(OpenDB("testdb", &db).ok()) {
+    GetData(db);
+    delete db;
   }
 
-  Env::Default()->SleepForMicroseconds(ttl * 10000);
-
-  for (int i = 0; i < 100; i++) {
-    int key_ = rand() % key_num+1;
-    key_ = 1;
-    std::string key = std::to_string(key_);
-    std::string value;
-    status = db->Get(readOptions, key, &value);
-    assert(status.ok() != true);
-    break;
-  }
   return 0;
 }
-
diff --git a/test/simple_test.cc b/test/simple_test.cc
index a4e5f3c..b0fb505 100644
--- a/test/simple_test.cc
+++ b/test/simple_test.cc
@@ -40,54 +40,95 @@ Status OpenDB(std::string dbName, DB **db) {
 //  }
 //}
 
+//void InsertData(DB *db, uint64_t ttl/* second */) {
+//  WriteOptions writeOptions;
+//  int key_num = data_size / value_size;
+//  srand(static_cast<unsigned int>(time(0)));
+//  for (int i = 0; i < key_num; i++) {
+//    int key_ = rand() % key_num+1;
+//    key_ = 1;
+//    std::string key = std::to_string(key_);
+//    std::string value(value_size, 'a');
+//    db->Put(writeOptions, key, value, ttl);
+//    std::cout << "time to alive" << ttl << std::endl;
+//    break;
+//  }
+//}
+
 void InsertData(DB *db, uint64_t ttl/* second */) {
   WriteOptions writeOptions;
   int key_num = data_size / value_size;
-  srand(static_cast<unsigned int>(time(0)));
+  srand(0);
+
   for (int i = 0; i < key_num; i++) {
     int key_ = rand() % key_num+1;
-    key_ = 1;
     std::string key = std::to_string(key_);
     std::string value(value_size, 'a');
     db->Put(writeOptions, key, value, ttl);
-    std::cout << "time to alive" << ttl << std::endl;
-    break;
   }
 }
-
-int main() {
-
+int main(){
   DB *db;
+
   if(OpenDB("testdb", &db).ok() == false) {
     std::cerr << "open db failed" << std::endl;
     abort();
   }
 
-  uint64_t ttl = 200;
-
-//  InsertData(db, ttl);
-  WriteOptions writeOptions;
-  int key_ = 1;
-  std::string key = std::to_string(key_);
-  std::string value(1, 'a');
-  db->Put(writeOptions, key, value, ttl);
-  std::cout << "time to alive" << ttl << std::endl;
+  uint64_t ttl = 20;
+  InsertData(db, ttl);
 
-  ReadOptions readOptions;
-  std::string value_read;
-  Status status = db->Get(readOptions, key, &value);
+  leveldb::Range ranges[1];
+  ranges[0] = leveldb::Range("-", "A");
+  uint64_t sizes[1];
+  db->GetApproximateSizes(ranges, 1, sizes);
+  //ASSERT_GT(sizes[0], 0);
+  assert(sizes[0] > 0);
+  Env::Default()->SleepForMicroseconds(ttl * 1000000);
 
+  db->CompactRange(nullptr, nullptr);
 
-  //std::cout<<"start sleep for " <<
-  Env::Default()->SleepForMicroseconds(ttl * 100000);
-
+  leveldb::Range ranges2[1];
+  ranges2[0] = leveldb::Range("-", "A");
+  uint64_t sizes2[1];
+  db->GetApproximateSizes(ranges2, 1, sizes2);
+  assert(sizes2[0] == 0);
+}
 
-  key_ = 1;
-  key = std::to_string(key_);
-  std::string value_read_second;
-  status = db->Get(readOptions, key, &value_read_second);
-  assert(status.ok() != true);
 
-  return 0;
-}
+//int main() {
+//
+//  DB *db;
+//  if(OpenDB("testdb", &db).ok() == false) {
+//    std::cerr << "open db failed" << std::endl;
+//    abort();
+//  }
+//
+//  uint64_t ttl = 200;
+//
+////  InsertData(db, ttl);
+//  WriteOptions writeOptions;
+//  int key_ = 1;
+//  std::string key = std::to_string(key_);
+//  std::string value(1, 'a');
+//  db->Put(writeOptions, key, value, ttl);
+//  std::cout << "time to alive" << ttl << std::endl;
+//
+//  ReadOptions readOptions;
+//  std::string value_read;
+//  Status status = db->Get(readOptions, key, &value);
+//
+//
+//  //std::cout<<"start sleep for " <<
+//  Env::Default()->SleepForMicroseconds(ttl * 100000);
+//
+//
+//  key_ = 1;
+//  key = std::to_string(key_);
+//  std::string value_read_second;
+//  status = db->Get(readOptions, key, &value_read_second);
+//  assert(status.ok() != true);
+//
+//  return 0;
+//}
 
diff --git a/test/ttl_test.cc b/test/ttl_test.cc
index ce43f04..745cc15 100644
--- a/test/ttl_test.cc
+++ b/test/ttl_test.cc
@@ -1,25 +1,7 @@
-
-
-#include "gtest/gtest.h"
-
-#include "leveldb/env.h"
-#include "leveldb/db.h"
-
-
-using namespace leveldb;
-
-constexpr int value_size = 2048;
-constexpr int data_size = 128 << 20;
-
-Status OpenDB(std::string dbName, DB **db) {
-  Options options;
-  options.create_if_missing = true;
 #include "gtest/gtest.h"
-
 #include "leveldb/env.h"
 #include "leveldb/db.h"
 
-
 using namespace leveldb;
 
 constexpr int value_size = 2048;
@@ -34,7 +16,7 @@ Status OpenDB(std::string dbName, DB **db) {
 void InsertData(DB *db, uint64_t ttl/* second */) {
   WriteOptions writeOptions;
   int key_num = data_size / value_size;
-  srand(static_cast<unsigned int>(time(0)));
+  srand(0);
 
   for (int i = 0; i < key_num; i++) {
     int key_ = rand() % key_num+1;
@@ -44,12 +26,12 @@ void InsertData(DB *db, uint64_t ttl/* second */) {
   }
 }
 
-void GetData(DB *db, int size = (1 << 30)){
+void GetData(DB *db, int size = (1 << 30)) {
   ReadOptions readOptions;
   int key_num = data_size / value_size;
-
+  
   // 点查
-  srand(static_cast<unsigned int>(time(0)));
+  srand(0);
   for (int i = 0; i < 100; i++) {
     int key_ = rand() % key_num+1;
     std::string key = std::to_string(key_);
@@ -59,135 +41,71 @@ void GetData(DB *db, int size = (1 << 30)){
 }
 
 TEST(TestTTL, ReadTTL) {
-    DB *db;
-    if(OpenDB("testdb", &db).ok() == false) {
-        std::cerr << "open db failed" << std::endl;
-        abort();
-    }
-
-    uint64_t ttl = 20;
-
-    InsertData(db, ttl);
-
-    ReadOptions readOptions;
-    Status status;
-    int key_num = data_size / value_size;
-    srand(static_cast<unsigned int>(time(0)));
-    for (int i = 0; i < 100; i++) {
-        int key_ = rand() % key_num+1;
-        std::string key = std::to_string(key_);
-        std::string value;
-        status = db->Get(readOptions, key, &value);
-        ASSERT_TRUE(status.ok());
-    }
-
-    Env::Default()->SleepForMicroseconds(ttl * 1000000);
-
-    for (int i = 0; i < 100; i++) {
-        int key_ = rand() % key_num+1;
-        std::string key = std::to_string(key_);
-        std::string value;
-        status = db->Get(readOptions, key, &value);
-        ASSERT_FALSE(status.ok());
-    }
-}
+  DB *db;
+  if(OpenDB("testdb", &db).ok() == false) {
+    std::cerr << "open db failed" << std::endl;
+    abort();
+  }
 
-  return DB::Open(options, dbName, db);
-}
+  uint64_t ttl = 20;
 
-void InsertData(DB *db, uint64_t ttl/* second */) {
-  WriteOptions writeOptions;
-  int key_num = data_size / value_size;
-  srand(static_cast<unsigned int>(time(0)));
+  InsertData(db, ttl);
 
-  for (int i = 0; i < key_num; i++) {
+  ReadOptions readOptions;
+  Status status;
+  int key_num = data_size / value_size;
+  srand(0);
+  for (int i = 0; i < 100; i++) {
     int key_ = rand() % key_num+1;
     std::string key = std::to_string(key_);
-    std::string value(value_size, 'a');
-    db->Put(writeOptions, key, value, ttl);
+    std::string value;
+    status = db->Get(readOptions, key, &value);
+    ASSERT_TRUE(status.ok());
   }
-}
 
-void GetData(DB *db, int size = (1 << 30)) {
-  ReadOptions readOptions;
-  int key_num = data_size / value_size;
-  
-  // 点查
-  srand(static_cast<unsigned int>(time(0)));
+  Env::Default()->SleepForMicroseconds(ttl * 1000000);
+
   for (int i = 0; i < 100; i++) {
     int key_ = rand() % key_num+1;
     std::string key = std::to_string(key_);
     std::string value;
-    db->Get(readOptions, key, &value);
+    status = db->Get(readOptions, key, &value);
+    ASSERT_FALSE(status.ok());
   }
-}
 
-TEST(TestTTL, ReadTTL) {
-    DB *db;
-    if(OpenDB("testdb", &db).ok() == false) {
-        std::cerr << "open db failed" << std::endl;
-        abort();
-    }
-
-    uint64_t ttl = 20;
-
-    InsertData(db, ttl);
-
-    ReadOptions readOptions;
-    Status status;
-    int key_num = data_size / value_size;
-    srand(static_cast<unsigned int>(time(0)));
-    for (int i = 0; i < 100; i++) {
-        int key_ = rand() % key_num+1;
-        std::string key = std::to_string(key_);
-        std::string value;
-        status = db->Get(readOptions, key, &value);
-        ASSERT_TRUE(status.ok());
-    }
-
-    Env::Default()->SleepForMicroseconds(ttl * 1000000);
-
-    for (int i = 0; i < 100; i++) {
-        int key_ = rand() % key_num+1;
-        std::string key = std::to_string(key_);
-        std::string value;
-        status = db->Get(readOptions, key, &value);
-        ASSERT_FALSE(status.ok());
-    }
 }
 
 TEST(TestTTL, CompactionTTL) {
-    DB *db;
+  DB *db;
 
-    if(OpenDB("testdb", &db).ok() == false) {
-        std::cerr << "open db failed" << std::endl;
-        abort();
-    }
+  if(OpenDB("testdb", &db).ok() == false) {
+    std::cerr << "open db failed" << std::endl;
+    abort();
+  }
 
-    uint64_t ttl = 20;
-    InsertData(db, ttl);
+  uint64_t ttl = 20;
+  InsertData(db, ttl);
 
-    leveldb::Range ranges[1];
-    ranges[0] = leveldb::Range("-", "A");
-    uint64_t sizes[1];
-    db->GetApproximateSizes(ranges, 1, sizes);
-    ASSERT_GT(sizes[0], 0);
+  leveldb::Range ranges[1];
+  ranges[0] = leveldb::Range("-", "A");
+  uint64_t sizes[1];
+  db->GetApproximateSizes(ranges, 1, sizes);
+  ASSERT_GT(sizes[0], 0);
 
-    Env::Default()->SleepForMicroseconds(ttl * 1000000);
+  Env::Default()->SleepForMicroseconds(ttl * 1000000);
 
-    db->CompactRange(nullptr, nullptr);
+  db->CompactRange(nullptr, nullptr);
 
-    leveldb::Range ranges[1];
-    ranges[0] = leveldb::Range("-", "A");
-    uint64_t sizes[1];
-    db->GetApproximateSizes(ranges, 1, sizes);
-    ASSERT_EQ(sizes[0], 0);
+  leveldb::Range ranges2[1];
+  ranges2[0] = leveldb::Range("-", "A");
+  uint64_t sizes2[1];
+  db->GetApproximateSizes(ranges2, 1, sizes2);
+  ASSERT_EQ(sizes[0], 0);
 }
 
 
 int main(int argc, char** argv) {
   // All tests currently run with the same read-only file limits.
-
   testing::InitGoogleTest(&argc, argv);
   return RUN_ALL_TESTS();
-}
+}
\ No newline at end of file