diff --git "a/\345\212\240\345\207\217\344\271\230\351\231\244/\345\205\250\345\261\200.js" "b/\345\212\240\345\207\217\344\271\230\351\231\244/\345\205\250\345\261\200.js"
new file mode 100644
index 0000000000000000000000000000000000000000..8406ca6a7482f036a0468a5dfe6d49ad36860c21
--- /dev/null
+++ "b/\345\212\240\345\207\217\344\271\230\351\231\244/\345\205\250\345\261\200.js"
@@ -0,0 +1,6 @@
+let obj = require('./模块');
+
+obj.jia(1,1);
+obj.jian(2,1);
+obj.cheng(5,5);
+obj.chu(8,4);
\ No newline at end of file
diff --git "a/\345\212\240\345\207\217\344\271\230\351\231\244/\346\250\241\345\235\227.js" "b/\345\212\240\345\207\217\344\271\230\351\231\244/\346\250\241\345\235\227.js"
new file mode 100644
index 0000000000000000000000000000000000000000..d2eff3052af838a0f4e70281de6336fe14011fa4
--- /dev/null
+++ "b/\345\212\240\345\207\217\344\271\230\351\231\244/\346\250\241\345\235\227.js"
@@ -0,0 +1,15 @@
+let mk = {
+    'jia':function(a,b){
+        console.log(a+b);
+    },
+    'jian':function(a,b){
+        console.log(a-b);
+    },
+    'cheng':function(a,b){
+        console.log(a*b);
+    },
+    'chu':function(a,b){
+        console.log(a/b);
+    }
+}
+module.exports=mk;
\ No newline at end of file
diff --git "a/\351\232\217\346\234\272\347\224\237\346\210\220\346\226\207\344\273\266/deom.js" "b/\351\232\217\346\234\272\347\224\237\346\210\220\346\226\207\344\273\266/deom.js"
new file mode 100644
index 0000000000000000000000000000000000000000..a13fb60caac217cb3bdcf58a2240dd1cf42d78aa
--- /dev/null
+++ "b/\351\232\217\346\234\272\347\224\237\346\210\220\346\226\207\344\273\266/deom.js"
@@ -0,0 +1,16 @@
+'use strict'//严格模式
+var fs = require('fs');
+var Maxfile =''//最大文件名
+var Max = 0;
+for(var i =1; i<=100; i++){
+    // Math.floor(Math.random()*(max-min+1)+min)随机固定格式
+    var sj =Math.floor(Math.random() * (1000 -1 + 1)+1);
+    var text=""+sj+"";//sj number转文本
+    var file="./"+i+".txt";//i 转文本
+    fs.writeFileSync(file,text);//读文件建文件
+    if(Number(text)>Max){
+        Max=Number(text);//文本里面的内容和0比较，比0大max就替换成文本内容
+        Maxfile=file;
+    }
+}
+console.log(Maxfile);
\ No newline at end of file