diff --git "a/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/Program.cs" "b/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/Program.cs"
new file mode 100644
index 0000000000000000000000000000000000000000..7c2d3059bb65a72a1cd644ac85b1ac2f10ef6f6b
--- /dev/null
+++ "b/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/Program.cs"
@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConsoleApp1
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+           
+
+            Text1();
+
+        }
+
+        static void  Text1() {
+
+            //1.定义一个计算图形面积的类，类中定义2个计算面积的方法（重载），
+            //分别计算圆面积和长方形面积两个方法。
+            //提示：计算圆的面积传半径，计算长方形面积传长和宽。。
+
+            staff S = new staff(6);
+            S.yuanx();
+
+        
+            staff A = new staff(10,10);
+            A.changfangx();
+
+        }//圆形长方形面积
+        static void Text2() {
+
+            SumUtils S = new SumUtils(3,4);
+            S.Intron();
+        }//两数相加
+        static void Text3() {
+            SumUtils D = new SumUtils(3.5,3.5);
+            D.point();
+        }//小数相加
+        static void Text4() {
+
+            SumUtils word = new SumUtils("牛","马");
+            word.text();
+        }//字符串相加
+        static void Text5() {
+            SumUtils A = new SumUtils(6);
+            A.number();
+        }//1指定另一个数累加
+    }
+}
diff --git "a/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/SumUtils.cs" "b/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/SumUtils.cs"
new file mode 100644
index 0000000000000000000000000000000000000000..3472b398b1404a3587145e4c638ff4e732c26933
--- /dev/null
+++ "b/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/SumUtils.cs"
@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConsoleApp1 {
+
+    class SumUtils
+    {
+        public int Num1 { get; set; }
+        public int Num2 { get; set; }
+
+        public double D1 { get; set; }
+        public double D2 { get; set; }
+        
+        public string S1 { get; set; }
+        public string S2 { get; set; }
+
+        public int N1 { get; set; }
+     
+
+        public SumUtils(int num1, int num2) {
+            this.Num1 = num1;
+            this.Num2 = num2;
+
+        }
+
+        public void Intron (){
+            Console.WriteLine("两数相加的结果是："+ (this.Num1+this.Num2));
+        }
+
+        public SumUtils(double d1,double d2) {
+            this.D1 = d1;
+            this.D2 = d2;
+        }
+
+        public void point( ) {
+            Console.WriteLine("两个小数相加和是："+(this.D1+this.D2));
+        }
+
+        public SumUtils(string s1,string s2) {
+            this.S1 = s1;
+            this.S2 = s2;
+        }
+
+
+        public void text() {
+
+            Console.WriteLine("字符串相加 你是什么 "+(this.S1+this.S2));
+        }
+
+
+
+        public SumUtils(int n1)
+        {
+            this.N1 = n1;
+        }
+
+        public void number() {
+            int sum = 0;
+            for (int i = 1; i <=N1; i++)
+            {
+                sum = sum + i;
+            }
+            Console.WriteLine("从1到"+N1+"相加和是："+sum);
+        }
+
+    }
+}
diff --git "a/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/staff.cs" "b/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/staff.cs"
new file mode 100644
index 0000000000000000000000000000000000000000..5333d867097225e524898952e1cf4ef452867dd5
--- /dev/null
+++ "b/\347\254\254\345\233\233\346\254\241\344\275\234\344\270\232/\345\220\264\347\205\214/staff.cs"
@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConsoleApp1
+{
+    class staff
+    {
+
+        public double  R { get; set; }
+
+        public int L { get; set; }
+        public int W { get; set; }
+
+        public staff(double r) {
+            this.R = r;
+        }
+
+        public  void yuanx() {
+            double result;
+            result = R * R * 3.14;
+            Console.WriteLine("圆的面积是{0}",result);
+        }
+
+        public staff(int l,int w) {
+            this.L = l;
+            this.W = w;
+
+        }
+
+        public void changfangx() {
+            int result;
+            result = L * W;
+            Console.WriteLine("长方形的面积是{0}",result);
+        }
+
+    }
+}