diff --git "a/\346\250\241\345\235\227/j\350\256\241\347\256\227\346\234\272.js" "b/\346\250\241\345\235\227/j\350\256\241\347\256\227\346\234\272.js"
new file mode 100644
index 0000000000000000000000000000000000000000..48d8d6d0891e3c4d2b7e4b952e9a5a97cd5b7a4f
--- /dev/null
+++ "b/\346\250\241\345\235\227/j\350\256\241\347\256\227\346\234\272.js"
@@ -0,0 +1,31 @@
+let obj={
+    add:function(a,b){
+        if(/^[0-9]$/.test(a),/^[0-9]$/.test(b)){
+            return a+b;
+        }else{
+            return"语法错误";
+        }
+    },
+    jian:function(a,b){
+        if(/[0-9]$/.test(a)&&/[0-9]$/.test(b)){
+            return a-b;
+        }else{
+            return"语法错误";
+        }
+    },
+    cheng:function(a,b){
+        if(/^[0-9]$/.test(a)&&/[0-9]$/.test(b)){
+            return a*b;
+        }else{
+            return"语法错误";
+        }
+    },
+    chu:function(a,b){
+        if(/^[0-9]$/.test(a)&&/[1-9]$/.test(b)){
+            return a/b;
+        }else{
+            return"语法错误";
+        }
+    }
+}
+module.exports = obj;
\ No newline at end of file
diff --git "a/\346\250\241\345\235\227/\346\265\213\350\257\225.js" "b/\346\250\241\345\235\227/\346\265\213\350\257\225.js"
new file mode 100644
index 0000000000000000000000000000000000000000..b566c805bbf7e93d321f386793e77ceeaf6c6050
--- /dev/null
+++ "b/\346\250\241\345\235\227/\346\265\213\350\257\225.js"
@@ -0,0 +1,5 @@
+let result=require("./j计算机");
+console.log("加的结果为："+result.add(13,5));
+console.log("相减的结果为："+result.jian(-2,2));
+console.log("相乘的结果为："+result.cheng(3,""));
+console.log("相除的结果为："+result.chu(2,0));
\ No newline at end of file