diff --git "a/\345\210\230\346\242\205\347\220\263/\344\275\234\344\270\232/1.js" "b/\345\210\230\346\242\205\347\220\263/\344\275\234\344\270\232/1.js"
new file mode 100644
index 0000000000000000000000000000000000000000..7d62849ec7aae2099422ae0775ac9b9ad821745b
--- /dev/null
+++ "b/\345\210\230\346\242\205\347\220\263/\344\275\234\344\270\232/1.js"
@@ -0,0 +1,34 @@
+let l= /^[0-9]+[0-9]*/
+let obj={
+    jia: function(a,b){
+        if(!l.test(a)||!l.test(b)){
+            console.log("输入错误")
+        }else{
+            return a+b;
+        }
+    },
+    jian: function(a,b){
+        if(!l.test(a)||!l.test(b)){
+            console.log("输入错误")
+        }else{
+            return a-b;
+        }
+    },
+    cheng: function(a,b){
+        if(!l.test(a)||!l.test(b)){
+            console.log("输入错误")
+        }else{
+            return a*b ;
+        }
+    },
+    chu: function(a,b){
+        var k= /^[1-9]+[0-9]*/;
+        if(!k.test(a)||!k.test(b)){
+            console.log("输入错误，不能为零")
+            
+        }else{
+            return a/b;
+        }
+    }
+}
+module.exports = obj;
diff --git "a/\345\210\230\346\242\205\347\220\263/\344\275\234\344\270\232/2.js" "b/\345\210\230\346\242\205\347\220\263/\344\275\234\344\270\232/2.js"
new file mode 100644
index 0000000000000000000000000000000000000000..885c61ea1613b3b3978ffc87686d78e9cac52169
--- /dev/null
+++ "b/\345\210\230\346\242\205\347\220\263/\344\275\234\344\270\232/2.js"
@@ -0,0 +1,5 @@
+let rr = require("./1.js");
+console.log(rr.jia(2,2));
+console.log(rr.jian(10,1));
+console.log(rr.cheng(1,20));
+console.log(rr.chu(15,3));
\ No newline at end of file