diff --git "a/\345\220\264\351\207\217/2023.2.14/obj.js" "b/\345\220\264\351\207\217/2023.2.14/obj.js"
new file mode 100644
index 0000000000000000000000000000000000000000..595f3984684c540f8cd51882540d15b8c3550f14
--- /dev/null
+++ "b/\345\220\264\351\207\217/2023.2.14/obj.js"
@@ -0,0 +1,19 @@
+let obj = {
+    "addition":function(num1,num2){
+        return num1+num2;
+    },
+    "subtraction":function(num1,num2){
+        return num1-num2;
+    },
+    "multiplication":function(num1,num2){
+        return num1*num2;
+    },
+    "division":function(num1,num2){
+        return num1/num2;
+    },
+    "go":function(num1,num2){
+        console.log(num1+"+"+num2+"="+this.addition(num1,num2)+"\n"+num1+"-"+num2+"="+this.subtraction(num1,num2)+"\n"+num1+"*"+num2+"="+this.multiplication(num1,num2)+"\n"+num1+"/"+num2+"="+this.division(num1,num2));
+    }
+}
+
+module.exports = obj;
\ No newline at end of file
diff --git "a/\345\220\264\351\207\217/2023.2.14/one.js" "b/\345\220\264\351\207\217/2023.2.14/one.js"
new file mode 100644
index 0000000000000000000000000000000000000000..7384d3dda16865de5eb45835128b544534fdbb39
--- /dev/null
+++ "b/\345\220\264\351\207\217/2023.2.14/one.js"
@@ -0,0 +1,3 @@
+let obj = require('./obj.js');
+    obj.go(1,2)
+