diff --git a/kinit-api/.gitignore b/kinit-api/.gitignore
index b0d58ee..f95b925 100644
--- a/kinit-api/.gitignore
+++ b/kinit-api/.gitignore
@@ -10,11 +10,6 @@ logs/*
 !logs/.gitkeep
 temp/*
 !temp/.gitkeep
-static/*
-!static/redoc_ui
-!static/swagger_ui
-!static/system/favicon.ico
-!static/system/logo.png
 !alembic/versions/.gitkeep
 
 # dotenv
diff --git a/kinit-api/utils/compute.py b/kinit-api/utils/compute.py
new file mode 100644
index 0000000..18111c5
--- /dev/null
+++ b/kinit-api/utils/compute.py
@@ -0,0 +1,74 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# @version        : 1.0
+# @Creaet Time    : 2022/5/12 17:09 
+# @File           : compute.py
+# @IDE            : PyCharm
+# @desc           : 精准计算
+from decimal import Decimal
+from typing import Union
+
+
+class Compute:
+
+    @staticmethod
+    def add(precision: int, *args: Union[float, Decimal]) -> float:
+        """
+        相加
+        :param precision: 精度
+        """
+        result = 0
+        for i in args:
+            if i is None:
+                i = 0
+            result += Decimal(str(i))
+        if precision == -1:
+            return float(result)
+        return round(float(result), precision)
+
+    @staticmethod
+    def subtract(precision: int, *args: Union[float, Decimal]) -> float:
+        """
+        相减
+        :param precision: 精度
+        """
+        if args[0] is None:
+            start = 0
+        else:
+            start = args[0]
+        result = Decimal(str(start))
+        for i in args[1:]:
+            if i is None:
+                i = 0
+            result -= Decimal(str(i))
+        if precision == -1:
+            return float(result)
+        return round(float(result), precision)
+
+    @staticmethod
+    def divide(precision: int, *args: Union[float, Decimal]) -> float:
+        """
+        除法
+        :param precision: 精度
+        """
+        result = Decimal(str(args[0]))
+        for i in args[1:]:
+            result = result / Decimal(str(i))
+        if precision == -1:
+            return float(result)
+        return round(float(result), precision)
+
+    @staticmethod
+    def multiply(precision: int, *args: Union[float, Decimal]) -> float:
+        """
+        乘法
+        :param precision: 精度
+        """
+        result = Decimal(str(1))
+        for i in args:
+            if i is None:
+                i = 1
+            result = result * Decimal(str(i))
+        if precision == -1:
+            return float(result)
+        return round(float(result), precision)