diff --git a/src/main.cpp b/src/main.cpp
index b90852a..8065f8e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,13 +5,14 @@
 #include <filesystem>
 #include <fstream>
 #include <functional>
+#include <future>
 #include <iostream>
 #include<json/json.h>
 #include <ostream>
 #include <queue>
-#include <sstream>
 #include <string>
 #include <thread>
+#include <utility>
 
 #ifdef _WIN32
     #include<windows.h>
@@ -59,21 +60,30 @@ struct Test{
     }
 };
 
-#ifdef _WIN32
-    struct ProgramRet{
-        time_point<steady_clock> start;
-        time_point<steady_clock> end;
-    };
-    void executeCommandWithRedirect(const std::string &command, const std::string &inputFile, const std::string &outputFile);
-#else
-    struct ProgramRet{
-        time_point<system_clock> start;
-        time_point<system_clock> end;
-    };
-#endif
+struct ProgramRet{
+    time_point<system_clock> start;
+    time_point<system_clock> end;
+};
 
 template<typename T>
 T getValueOrPanic(T value);
+int compareFiles(const std::string& path1, const std::string& path2);
+
+struct Statu{
+    bool isTLE = false;
+    int cmp;
+    int id;
+    friend std::ostream& operator<<(std::ostream &os,Statu &s){
+        if(s.isTLE){
+            os<<"tests "<<s.id<<" TLE";
+        }else if(s.cmp==0){
+            os<<"tests "<<s.id<<" AC";
+        }else{
+            os<<"tests "<<s.id<<" WA line:"<<s.cmp;
+        }
+        return os;
+    }
+};
 
 int main(int argc, char* argv[]) {
     LOG("Zengtudor OI test tools . loading files .. please add a json file in arg");
@@ -119,6 +129,12 @@ int main(int argc, char* argv[]) {
         LOG("creating building dir")
         std::filesystem::create_directory(buildDir);
     }
+    LOG("getting run time out")
+    int runtimeout = 0;
+    if(jsonValue["runtimeout"]!=Json::nullValue){
+        runtimeout = jsonValue["runtimeout"].asInt();
+        printValue(runtimeout)
+    }
     LOG("compiling")
     string compileCommands;
     const path exePath = (buildDir/"main").string()+(isWindows==true?".exe":"");
@@ -130,16 +146,19 @@ int main(int argc, char* argv[]) {
     auto cpuNums = getCpuNums();
     printValue(cpuNums)
 
-    if(jsonValue["tests"].size()==0)LOG("cannot find tests");
+    if(jsonValue["tests"].size()==0){
+        LOG("cannot find tests")
+        return 0;
+    }
     LOG("parsing tests")
-    vector<Test> tests;
+    vector<Test> tests(jsonValue["tests"].size()+1);
     auto &jsonTests = jsonValue["tests"];
     for(unsigned int i=1;i<=jsonTests.size();i++){
-        tests.push_back({
+        tests[i]={
             .id = i,
             .in=getAbsolutePath(projectPath, getValueOrPanic(jsonTests[i-1]["in"]).asString()),
             .ans=getAbsolutePath(projectPath,getValueOrPanic(jsonTests[i-1]["ans"]).asString()),
-        });
+        };
     }
     queue<std::function<ProgramRet()>> tasks;
     const auto testsPath = projectPath/"tests";
@@ -149,42 +168,92 @@ int main(int argc, char* argv[]) {
     }
     printValue(testsPath)
     const string exePathStr = getProtectPath(exePath);
-    for (auto i : tests) {
-        tasks.push([i, &exePathStr, &testsPath]() -> ProgramRet {
-            string id_str = std::to_string(i.id);
-            path outPath = testsPath / (id_str + ".out");
-
-            // 构建命令
-            string commands = exePathStr + " < " + getProtectPath(i.in) + " > " + getProtectPath(outPath);
-
-            // 输出构建的命令进行调试
-            LOG(commands);
-
-            // 执行命令
+    for(auto i:tests){
+        tasks.push([i,&exePathStr,&testsPath]()->ProgramRet{
+            string commands;
+            std::stringstream ss;
+            ss<<i.id;
+            string id_str;
+            ss>>id_str;
+            path outPath = testsPath/(id_str+".out") ;
+            commands = commands+exePathStr+" < "+getProtectPath(i.in)+" > "+getProtectPath(outPath);
+            LOG(commands)
             auto start = high_resolution_clock::now();
-            #ifdef _WIN32
-                executeCommandWithRedirect(commands, getProtectPath(i.in), getProtectPath(outPath));
-            #else
-                system(commands.c_str())
-            #endif
-            auto end = high_resolution_clock::now();
-
-            // AS_EM(result, 0,"error in exec commands")
-
+            system(commands.c_str());
+            auto end=high_resolution_clock::now();
             return ProgramRet{
-                .start = start,
+                .start=start,
                 .end = end
             };
         });
     }
-
     while(tasks.size()>0){
         auto i = tasks.front();
         tasks.pop();
-        thread newThread(i);
-        AS_EQ(newThread.joinable(),true);
-        newThread.join();
+        futures.push_back(std::async(std::launch::async,i));
     }
+    vector<ProgramRet> results(jsonTests.size()+1);
+    for(auto &i:futures){
+        if(runtimeout>0){
+            if(i.wait_for(std::chrono::milliseconds(runtimeout))==std::future_status::ready){
+                auto ret = i.get();
+                results[ret.id]=ret;
+            }
+        }else{
+            i.wait();
+            auto ret = i.get();
+            results[ret.id]=ret;
+        }
+    }
+    LOG("get results done")
+    for(int i=1;i<=jsonTests.size();i++){
+        LOG(results[i])
+    }
+
+    vector<Statu> status(jsonTests.size()+1);
+    for(int i=1;i<=jsonTests.size();i++){
+        printValue(tests[i].ans)
+        status[i]={
+            .isTLE=(results[i].id==0?true:false),
+            .cmp=compareFiles(results[i].outPath,tests[i].ans),
+            .id=i
+        };
+    }
+    for(int i=1;i<=jsonTests.size();i++){
+        cout<<status[i]<<endl;
+    }
+    exit(0);
+}
+
+int compareFiles(const std::string& path1, const std::string& path2) {
+    std::ifstream file1(path1);
+    std::ifstream file2(path2);
+
+    if (!file1.is_open()) {
+        std::cerr << "无法打开文件: " << path1 << std::endl;
+        exit(1);
+    }
+    if (!file2.is_open()) {
+        std::cerr << "无法打开文件: " << path2 << std::endl;
+        exit(1);
+    }
+
+    std::string line1, line2;
+    int lineNumber = 1;
+
+    while (std::getline(file1, line1) && std::getline(file2, line2)) {
+        if (line1 != line2) {
+            return lineNumber;  // 返回第一个不同的行号
+        }
+        ++lineNumber;
+    }
+
+    // 如果一个文件还没读完
+    if (std::getline(file1, line1) || std::getline(file2, line2)) {
+        return lineNumber;
+    }
+
+    return 0;  // 文件内容完全一致
 }
 
 #ifdef _WIN32
diff --git a/tests/main.cpp b/tests/main.cpp
index 6ba5b0b..8d3175a 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -1,8 +1,11 @@
 #include<bits/stdc++.h>
+#include <chrono>
+#include <thread>
 using namespace std;
 
 
 int main(){
+    // this_thread::sleep_for(chrono::seconds(2));
     string s;
     cin>>s;
     cout<<s<<endl;
diff --git a/tests/xj.json b/tests/xj.json
index 2a8e1eb..eaf6470 100644
--- a/tests/xj.json
+++ b/tests/xj.json
@@ -5,10 +5,5 @@
     "args":[
         "-O3"
     ],
-    "tests":[
-        {
-            "in":"a.in",
-            "ans":"1.ans"
-        }
-    ]
+    "runtimeout":100
 }
\ No newline at end of file