diff --git a/util.hpp b/util.hpp
new file mode 100644
index 0000000..edb2734
--- /dev/null
+++ b/util.hpp
@@ -0,0 +1,218 @@
+/// Part of BigData Project. Included By Main.cpp .
+/// This file should not be included by other files.
+
+/// 薪资空间,平均值 单位:元,月薪
+struct cash_pack
+{
+    int low,high;
+
+    int ave() const {return (low+high)/2;}
+};
+
+/// 为map设计的比较算法
+bool operator < (const cash_pack& a,const cash_pack& b)
+{
+    if(a.low==b.low)
+    {
+        return a.high<b.high;
+    }
+    else return a.low<b.low;
+}
+
+/// 解析薪资空间信息
+cash_pack ParseCash(const char* ptr)
+{
+    cash_pack pk;
+
+    auto strange=[&]()
+    {
+        cout<<"Strange: "<<ptr<<endl;
+        system("pause");
+    };
+
+    char* p=strstr(ptr,"-");
+    if(p==nullptr)
+    {
+        if( strstr(ptr,"以上")!=nullptr || strstr(ptr,"以下")!=nullptr)
+        {
+            int t;
+            sscanf(ptr,"%d",&t);
+            pk.low=pk.high=t*1000;
+        }
+        else
+        {
+            strange();
+        }
+    }
+    else
+    {
+        int alow,ahigh;
+        sscanf(ptr,"%d",&alow);
+        sscanf(p+1,"%d",&ahigh);
+        pk.low=alow*1000;
+        pk.high=ahigh*1000;
+    }
+
+    return pk;
+}
+
+cash_pack ParseCashX(const char* ptr)
+{
+    cash_pack pk;
+
+    auto strange=[&]()
+    {
+        cout<<"Strange: "<<ptr<<endl;
+        system("pause");
+    };
+
+    char* p=strstr(ptr,"-");
+    if(p==nullptr)
+    {
+        /// 此处由bigdata5数据库直接得出结论,谨慎使用！
+        /// 单位：元/天 -> [ x30 ] 转换到 -> 元/月 , low=high
+        int c;
+        sscanf(ptr,"%d",&c);
+        pk.low=pk.high=c*30;
+    }
+    else
+    {
+        double dlow,dhigh;
+        sscanf(ptr,"%lf",&dlow);
+        sscanf(p+1,"%lf",&dhigh);
+
+        /// 解析单位
+        if(strstr(ptr,"千")!=nullptr||strstr(ptr,"k")!=nullptr||strstr(ptr,"K")!=nullptr)
+        {
+            dlow*=1000;
+            dhigh*=1000;
+        }
+        else if(strstr(ptr,"万")!=nullptr)
+        {
+            dlow*=10000;
+            dhigh*=10000;
+        }
+        else if(strstr(ptr,"元")!=nullptr)
+        {
+
+        }
+        else
+        {
+            cout<<"strange: 单位错误"<<endl;
+            strange();
+        }
+
+        /// 解析日期单位
+        if(strstr(ptr,"天")!=nullptr)
+        {
+            pk.low=dlow*30;
+            pk.high=dhigh*30;
+        }
+        else if(strstr(ptr,"月")!=nullptr)
+        {
+            pk.low=dlow;
+            pk.high=dhigh;
+        }
+        else if(strstr(ptr,"年")!=nullptr)
+        {
+            pk.low=dlow/12;
+            pk.high=dhigh/12;
+        }
+        else
+        {
+            if(strstr(ptr,"/")==nullptr)
+            {
+                /// 默认情况月薪
+                pk.low=dlow;
+                pk.high=dhigh;
+            }
+            else
+            {
+                cout<<"strange: 时间单位错误"<<endl;
+                strange();
+            }
+        }
+    }
+
+    return pk;
+}
+
+/// 解析tag
+vector<string> ParseTag(const char* str)
+{
+    vector<string> vec;
+
+    char* s=(char*)str;
+    char* p=nullptr;
+    char buff[256];
+    while(nullptr!=
+          (p=strstr(s,","))
+          )
+    {
+        memset(buff,0,256);
+        strncpy(buff,s,p-s);
+        vec.push_back(string(buff));
+        s=p+1;
+    }
+
+    int len=strlen(str);
+    if(s<str+len)
+    {
+        memset(buff,0,256);
+        strcpy(buff,s);
+        vec.push_back(string(buff));
+    }
+
+    return vec;
+}
+
+/// 解析int
+int ParseInt(const char* str)
+{
+    int cc;
+    sscanf(str,"%d",&cc);
+    return cc;
+}
+
+string Trim(const string& str)
+{
+    int sz=str.size();
+    int L=-1;
+    int R=-1;
+    for(int i=0;i<sz;i++)
+    {
+        if(str[i]==' '||str[i]=='\t'||str[i]=='\n'||str[i]=='\r')
+        {
+            continue;
+        }
+        else
+        {
+            L=i;
+            break;
+        }
+    }
+    if(L==-1)
+    {
+        /// All characters are [Space].
+        return "";
+    }
+    for(int i=sz-1;i>=0;--i)
+    {
+        if(str[i]==' '||str[i]=='\t'||str[i]=='\n'||str[i]=='\r')
+        {
+            continue;
+        }
+        else
+        {
+            R=i;
+            break;
+        }
+    }
+    if(R==-1)
+    {
+        /// All characters are [Space]/
+        return "";
+    }
+
+    return str.substr(L,R-L+1);
+}