diff --git "a/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/calculate.js" "b/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/calculate.js"
new file mode 100644
index 0000000000000000000000000000000000000000..093c01b0d76b2ea244dfc059ff03e670b6f804b9
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/calculate.js"
@@ -0,0 +1,16 @@
+module.exports = 
+ function add (x,y){
+     return parseInt(x) + parseInt(y);
+ }
+
+ function subtract (x,y){
+    return parseInt(x) - parseInt(y);
+}
+
+function multiply (x,y){
+    return parseInt(x) * parseInt(y);
+}
+
+function divide (x,y){
+    return parseInt(x) / parseInt(y);
+}
\ No newline at end of file
diff --git "a/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/module_count.js" "b/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/module_count.js"
new file mode 100644
index 0000000000000000000000000000000000000000..aed8e775664b687996290e63cffe2915ac9f8816
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/module_count.js"
@@ -0,0 +1,22 @@
+var count = {
+    add: function add( x , y ) {
+        return  x + y;
+    },
+    subtract:function subtract ( x , y){
+        return x - y;
+    },
+    multiply:function multiply ( x ,y ){
+        return x * y;
+    },
+    divide:function divide ( x , y ){
+        return x / y;
+    }
+}
+
+function handle( x , y , symbol ){
+    if(isNaN(x)|| isNaN(y) ){
+        throw Error("请输入数值");
+    }
+    return count[symbol](x,y);
+}
+module.exports.handle = handle;
\ No newline at end of file
diff --git "a/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/test.js" "b/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/test.js"
new file mode 100644
index 0000000000000000000000000000000000000000..1fa5390cf27a647dff08d8e5be31e9011c99a087
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/test.js"
@@ -0,0 +1,13 @@
+let cal = require('./calculate');
+let add =(41+42);
+console.log(add);
+
+let subtract =(5-9);
+console.log(subtract);
+
+let multiply =(3*6);
+console.log(multiply);
+
+let divide =(35/5);
+console.log(divide);
+
diff --git "a/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/test1.js" "b/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/test1.js"
new file mode 100644
index 0000000000000000000000000000000000000000..af4f46766cabff7a7b420575e73d18a313d4ac91
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/01\346\250\241\345\235\227\345\214\226\345\256\236\347\216\260\345\212\240\345\207\217\344\271\230\351\231\244/test1.js"
@@ -0,0 +1,9 @@
+let count =require('./module_count');
+try{
+    console.log(count.handle(9,3,'add'));
+    console.log(count.handle(6,4,'subtract'));
+    console.log(count.handle(5,4,'multiply'));
+    console.log(count.handle(10,2,'divide'));
+}catch(error){
+    console.log(error.message);
+}
\ No newline at end of file
diff --git "a/\345\274\240\346\235\260\345\215\216/02\345\220\214\345\274\202\346\255\245\345\206\231\345\205\245/fileplay.js" "b/\345\274\240\346\235\260\345\215\216/02\345\220\214\345\274\202\346\255\245\345\206\231\345\205\245/fileplay.js"
new file mode 100644
index 0000000000000000000000000000000000000000..8d9f034fbb80d75b4821b9f61d93225c0559ab48
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/02\345\220\214\345\274\202\346\255\245\345\206\231\345\205\245/fileplay.js"
@@ -0,0 +1,17 @@
+//写一段代码,可以指定的创建多个文件，文件名中要有序号，写入的内容可以随机
+let fs =require("fs");
+let fd=[]
+function create(num){
+    if(isNaN(num)){
+       throw new Error("请输入数字")
+    }else{
+       for(let i = 1; i < num ; i++){
+           fd[i] = fs.openSync('${i}' , "w");
+           fs.writeSync(fdp[i],'${Math.random()}');
+           fs.closeSync(fn[i])
+       }
+    }
+}
+module.exports={
+    create:create
+}
\ No newline at end of file
diff --git "a/\345\274\240\346\235\260\345\215\216/02\345\220\214\345\274\202\346\255\245\345\206\231\345\205\245/writefile.js" "b/\345\274\240\346\235\260\345\215\216/02\345\220\214\345\274\202\346\255\245\345\206\231\345\205\245/writefile.js"
new file mode 100644
index 0000000000000000000000000000000000000000..526c5f97dd84b1e84500b442d2a88bbae7e4cf61
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/02\345\220\214\345\274\202\346\255\245\345\206\231\345\205\245/writefile.js"
@@ -0,0 +1,8 @@
+//调用fs
+let cre = require("./fileplay");
+try{
+     cre.create(5)
+}catch(error){
+    console.log(error.message);
+    
+}
\ No newline at end of file
diff --git "a/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/100.txt" "b/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/100.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..890b080063761dad74d01987eb9bced17776e6f8
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/100.txt"
@@ -0,0 +1 @@
+0.9324421358974855
\ No newline at end of file
diff --git "a/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/com.txt" "b/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/com.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..d0817afc4a8edafe7464aa0442a80434c65b48ce
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/com.txt"
@@ -0,0 +1 @@
+0.926815973534229${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}${ason}
\ No newline at end of file
diff --git "a/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/demo${i}.txt" "b/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/demo${i}.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..e7fab1c29e29c1769a2745002348cdbf6bae55ad
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/demo${i}.txt"
@@ -0,0 +1 @@
+${ason}
\ No newline at end of file
diff --git "a/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/read.js" "b/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/read.js"
new file mode 100644
index 0000000000000000000000000000000000000000..5d4a33a8326bcc07f8c1fa134c7bcaded4ad407c
--- /dev/null
+++ "b/\345\274\240\346\235\260\345\215\216/03\346\226\207\344\273\266\350\257\273\345\217\226/read.js"
@@ -0,0 +1,14 @@
+//作业：
+//1.先创建100个文件，文件内容自便，创建完以后呢，读取每一个文件，并且把每一个文件的内容拼接起来
+//创建100个文件
+let fs = require('fs');
+for(let i = 1 ; i <= 100 ;i++){
+    let ason = Math.ceil(Math.random()*10)
+    let fn =fs.openSync('./com.txt','a')
+    let fd = fs.openSync('./demo${i}.txt',"w");
+    fs.writeSync(fd,'${ason}');
+    fs.writeSync(fn,'${ason}');
+    fs.closeSync(fd);
+}
+let buffer = fs.readFileSync("./com.txt",{flag:'r',encoding:'utf8'});
+console.log(buffer.toString());
\ No newline at end of file