diff --git "a/\346\261\237\351\233\205\347\220\263/\345\212\240\345\207\217\344\271\230\351\231\244\344\275\234\344\270\232/chna.js" "b/\346\261\237\351\233\205\347\220\263/\345\212\240\345\207\217\344\271\230\351\231\244\344\275\234\344\270\232/chna.js"
new file mode 100644
index 0000000000000000000000000000000000000000..735df11ff19a513fb7196b6a54dd7a9861d08d8e
--- /dev/null
+++ "b/\346\261\237\351\233\205\347\220\263/\345\212\240\345\207\217\344\271\230\351\231\244\344\275\234\344\270\232/chna.js"
@@ -0,0 +1,16 @@
+let obj ={
+    'jia' :function(a,b){
+        return a+b;
+    },
+    'jian':function(a,b){
+        return a-b;
+    },
+    'chang':function(a,b){
+        return a*b;
+    },
+    'chu' :function(a,b){
+        return a/b
+    }
+
+}
+module.exports=obj;
\ No newline at end of file
diff --git "a/\346\261\237\351\233\205\347\220\263/\345\212\240\345\207\217\344\271\230\351\231\244\344\275\234\344\270\232/chna2.js" "b/\346\261\237\351\233\205\347\220\263/\345\212\240\345\207\217\344\271\230\351\231\244\344\275\234\344\270\232/chna2.js"
new file mode 100644
index 0000000000000000000000000000000000000000..1d5c821e9d17b2ba08c5fc9e902751b99296cdd3
--- /dev/null
+++ "b/\346\261\237\351\233\205\347\220\263/\345\212\240\345\207\217\344\271\230\351\231\244\344\275\234\344\270\232/chna2.js"
@@ -0,0 +1,5 @@
+let chna2=require("./chna");
+console.log(chna2.jia(0,1));
+console.log(chna2.jian(4,1));
+console.log(chna2.chang(1,1));
+console.log(chna2.chu(8,2)); 
\ No newline at end of file