diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..03a53bb3594a1fcb959d1a40863c6f903866cd36
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,16 @@
+all: main main-debug
+
+CXX = clang++
+CXXFLAGS = -g -Wall -static
+
+SRCS = %.cpp
+
+
+main: $(SRCS)
+	$(CXX) $(CXXFLAGS) $(SRCS) -o "$@"
+
+main-debug: $(SRCS) 
+	$(CXX) $(CXXFLAGS) -O0 $(SRCS) -o "$@"
+
+clean:
+	rm -f main main-debug
\ No newline at end of file
diff --git a/base64.cpp b/base64.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..b38ef7f4e62e717979fb418cd295a8b7852b259d
--- /dev/null
+++ b/base64.cpp
@@ -0,0 +1,177 @@
+/**
+* @brief C++ base64 编解码
+* @author wid
+* @date 2013-20-25
+*
+* @note 若代码存在 bug 或程序缺陷, 请留言反馈, 谢谢!
+*/
+
+#include "memory.hpp"
+//base64 编解码函数声明
+string b64encodestring(const string &strString);      //对 ASCII 字符串进行 base64 编码
+string b64decodestring(const string &strString);      //对 base64 编码后的字符串进行解码
+
+//base64 编解码函数实现
+/**
+* @brief 对 ASCII 字符串进行 base64 编码
+*
+* @param strString 待编码的字符串
+*
+* @return srs::string 返回编码后的字符串
+*
+* @note 对于字符串中含有非 ASCII 字符串型的字符, 代码将抛出 string 型异常, 请捕获
+*/
+string b64encodestring(const string &strString)
+{
+    int nByteSrc = strString.length();
+    string pszSource = strString;
+
+    int i = 0;
+    for(i; i < nByteSrc; i++)
+        if( pszSource[i] < 0 || pszSource[i] > 127 )
+            throw "can not encode Non-ASCII characters";
+
+    const char *enkey = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+    string pszEncode(nByteSrc*4/3 + 4, '\0');
+    int nLoop = nByteSrc %3 == 0 ? nByteSrc : nByteSrc - 3;
+    int n = 0;
+    for(i=0; i < nLoop; i+=3 )
+    {
+        pszEncode[n] = enkey[pszSource[i]>>2];
+        pszEncode[n+1] = enkey[((pszSource[i]&3)<<4) | ((pszSource[i+1] & 0xF0)>>4)];
+        pszEncode[n+2] = enkey[((pszSource[i+1] & 0x0f)<<2) | ((pszSource[i+2] & 0xc0 )>>6)];
+        pszEncode[n+3] = enkey[pszSource[i+2] & 0x3F];
+        n += 4;
+    }
+
+    switch(nByteSrc%3)
+    {
+    case 0:
+        pszEncode[n] = '\0';
+        break;
+
+    case 1:
+        pszEncode[n] = enkey[pszSource[i]>>2];
+        pszEncode[n+1] = enkey[((pszSource[i]&3)<<4) | ((0&0xf0)>>4)];
+        pszEncode[n+2] = '=';
+        pszEncode[n+3] = '=';
+        pszEncode[n+4] = '\0';
+        break;
+
+    case 2:
+        pszEncode[n] = enkey[pszSource[i]>>2];
+        pszEncode[n+1] = enkey[((pszSource[i]&3)<<4) | ((pszSource[i+1]&0xf0)>>4)];
+        pszEncode[n+2] = enkey[(( pszSource[i+1]&0xf)<<2 ) | ((0&0xc0)>>6)];
+        pszEncode[n+3] = '=';
+        pszEncode[n+4] = '\0';
+        break;
+    }
+
+    return pszEncode.c_str();
+}
+
+/**
+* @brief 对 base64 编码后的字符串进行解码
+*
+* @param strString 待解码的字符串
+*
+* @return string 返回解码后的字符串
+*
+* @note 对于非base64编码的字符串或已损坏的base64字符串进行解码会抛出 string 型异常, 请捕获
+*/
+string b64decodestring(const string &strString)
+{
+    int nByteSrc = strString.length();
+    string pszSource = strString;
+
+    const int dekey[] = {
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+        62, // '+'
+        -1, -1, -1,
+        63, // '/'
+        52, 53, 54, 55, 56, 57, 58, 59, 60, 61, // '0'-'9'
+        -1, -1, -1, -1, -1, -1, -1,
+        0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
+        13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, // 'A'-'Z'
+        -1, -1, -1, -1, -1, -1,
+        26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
+        39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // 'a'-'z'
+    };
+
+    if(nByteSrc%4 != 0)
+        throw "bad base64 string";
+
+    string pszDecode(nByteSrc*3/4+4, '\0');
+    int nLoop = pszSource[nByteSrc-1]  == '=' ? nByteSrc - 4 : nByteSrc;
+    int b[4];
+    int i = 0, n = 0;
+    for(i = 0; i < nLoop; i += 4 )
+    {
+        b[0] = dekey[pszSource[i]];        b[1] = dekey[pszSource[i+1]];
+        b[2] = dekey[pszSource[i+2]];    b[3] = dekey[pszSource[i+3]];
+        if(b[0] == -1 || b[1] == -1 || b[2] == -1 || b[3] == -1)
+            throw "bad base64 string";
+
+        pszDecode[n] = (b[0] << 2) | ((b[1] & 0x30) >> 4);
+        pszDecode[n+1] = ((b[1] & 0xf) << 4) | ((b[2] & 0x3c) >> 2);
+        pszDecode[n+2] =  ((b[2] & 0x3) << 6) | b[3];
+
+        n+=3;
+    }
+
+    if( pszSource[nByteSrc-1] == '=' && pszSource[nByteSrc-2] == '=' )
+    {
+        b[0] = dekey[pszSource[i]];        b[1] = dekey[pszSource[i+1]];
+        if(b[0] == -1 || b[1] == -1)
+            throw "bad base64 string";
+
+        pszDecode[n] = (b[0] << 2) | ((b[1] & 0x30) >> 4);
+        pszDecode[n+1] = '\0';
+    }
+
+    if( pszSource[nByteSrc-1] == '=' && pszSource[nByteSrc-2] != '=' )
+    {
+        b[0] = dekey[pszSource[i]];        b[1] = dekey[pszSource[i+1]];
+        b[2] = dekey[pszSource[i+2]];
+        if(b[0] == -1 || b[1] == -1 || b[2] == -1)
+            throw "bad base64 string";
+
+        pszDecode[n] = (b[0] << 2) | ((b[1] & 0x30) >> 4);
+        pszDecode[n+1] = ((b[1] & 0xf) << 4) | ((b[2] & 0x3c) >> 2);
+        pszDecode[n+2] = '\0';
+    }
+
+    if( pszSource[nByteSrc-1] != '=' && pszSource[nByteSrc-2] != '=' )
+        pszDecode[n] = '\0';
+
+    return pszDecode;
+}
+
+//测试
+int main()
+{
+    ///编码测试
+    string str1 = "Hello, world!";
+    cout << "对Hello, world!进行base64编码: " << b64encodestring(str1) << endl;
+
+    ///解码测试
+    string str2 = "SGVsbG8sIHdvcmxkIQ==";
+    cout << "对SGVsbG8sIHdvcmxkIQ==进行base64解码: " << b64decodestring(str2) << endl;
+
+    ///编码耗时测试
+    string str3(10000000, 'A');    //生成 10000000 长的字符串
+    cout << endl << "对 10000000 长的字符串进行编码耗时测试.." << endl;
+    size_t t0 = clock();        //编码计时开始
+    b64encodestring(str3);
+    cout << "测试结束, 耗时 " << clock() - t0 << "ms" << endl;
+
+    ///解码耗时测试
+    string str4 = b64encodestring(str3);        //得到长度为 10000000 的字符串base64编码后的字符串
+    cout << endl << "对 " << str4.length() << " 长的base64字符串进行解码耗时测试.." << endl;
+    size_t t1 = clock();        //解码计时开始
+    b64decodestring(str3);
+    cout << "测试结束, 耗时 " << clock() - t1 << "ms" << endl;
+
+    return 0;
+}
\ No newline at end of file
diff --git a/memory.cpp b/memory.cpp
index bc971da571e67fac8a3f09c8e860aec066e4173b..b26cbbdfd57164c14224d76b4e310f216a3429a4 100644
--- a/memory.cpp
+++ b/memory.cpp
@@ -1,6 +1,9 @@
 #include "memory.hpp"
+unsigned long hexOfVirtualMeMory = 0x0066ccff;
+
 void memorytest(void) {
-  int *p = new int[8];
+  unsigned long *p = new unsigned long[8];
+  
   /*
    * create a new memory as linux
    * kernel virtual memory
@@ -15,6 +18,9 @@ void memorytest(void) {
    while loop for m
   create a bin file
   */
+    cout << p[i] << endl;
+      if (&p[i] == &hexOfVirtualMeMory) {
+        delete[] p;
       if (p[i] == hex) {
         cout << p[i] << endl;
         delete[] p;
@@ -23,6 +29,8 @@ void memorytest(void) {
         break;
       }
     }
+  
+    cout << "debug mod is enable " << endl;
   }
     cout << "debug mod is enable " << endl;
   }
@@ -30,6 +38,15 @@ int main(void) {
     int i = 0;
     while (1) {
       memorytest();
+      
+      i++;
+      sleep(1);
+      if (i == 20) {
+        cout << "memory test success" << endl;
+        break;
+      }
+    }
+      return 0;
       i++;
       sleep(1);
       if (i == 20) {