diff --git "a/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\345\207\217\344\271\230\351\231\244/Math.js" "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\345\207\217\344\271\230\351\231\244/Math.js"
new file mode 100644
index 0000000000000000000000000000000000000000..5590dd0c8bed5f06e45f969045e4f55d694423fa
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\345\207\217\344\271\230\351\231\244/Math.js"
@@ -0,0 +1,27 @@
+//加
+function add(num1,num2) {
+    num3 = num1+num2;
+    return num3;
+}
+console.log(add(3,5));
+
+//减
+function subtract(num1,num2) {
+    num4 = num1-num2;
+    return num4;
+}
+console.log(subtract(15,3));
+
+//乘
+function multiply(num1,num2) {
+    num5 = num1*num2;
+    return num5;
+}
+console.log(multiply(8,4));
+
+//除
+function divide(num1,num2) {
+    num5 = num1/num2;
+    return num5;
+}
+console.log(divide(8,4));
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/add.js" "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/add.js"
new file mode 100644
index 0000000000000000000000000000000000000000..b0a113101d56a1890bef275fde2464216ca21ba5
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/add.js"
@@ -0,0 +1,6 @@
+function add(x, y) {
+    return parseInt(x) + parseInt(y);
+    console.log(x + y);
+}
+
+exports.add = add;
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/divide.js" "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/divide.js"
new file mode 100644
index 0000000000000000000000000000000000000000..70552c0dc03a696c4719cc5d707ed1636e2bae22
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/divide.js"
@@ -0,0 +1,4 @@
+function divide(x, y) {
+    return parseInt(x) / parseInt(y)
+}
+exports.divide = divide;
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/math.js" "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/math.js"
new file mode 100644
index 0000000000000000000000000000000000000000..7cd5bc6ad01f135de52d5b038d07185f2f9f6c0c
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/math.js"
@@ -0,0 +1,20 @@
+let jia = require('./jia')
+let jian = require('./jian')
+let cheng = require('./cheng')
+let chu = require('./chu')
+
+//加
+let add = (40 + 15)
+console.log(add);
+
+//减
+let lower = (16 - 6)
+console.log(lower);
+
+//乘
+let ride = (15 * 5)
+console.log(ride);
+
+//除
+let divide = (40 / 8)
+console.log(divide);
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/minus.js" "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/minus.js"
new file mode 100644
index 0000000000000000000000000000000000000000..d999b9bf4190246ed1aac62d7e69c77e5245fcec
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/minus.js"
@@ -0,0 +1,4 @@
+function minus(x, y) {
+    return parseInt(x) - parseInt(y)
+}
+exports.lower = minus;
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/ride.js" "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/ride.js"
new file mode 100644
index 0000000000000000000000000000000000000000..7c65bd6e5f50c1bc637766b0f38fece8c6db4e9e
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/bag/ride.js"
@@ -0,0 +1,4 @@
+function ride(x, y) {
+    return parseInt(x) * parseInt(y)
+}
+exports.ride = ride;
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/sort.js" "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/sort.js"
new file mode 100644
index 0000000000000000000000000000000000000000..6b01899b67f4c0d10beb6ad8e94c677b21c9f6bd
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/sort.js"
@@ -0,0 +1,18 @@
+let math = require('./3')
+
+
+//加
+let add = (4.3 + 5)
+console.log(add);
+
+//减
+let minus = (10.6 - 6)
+console.log(minus);
+
+//乘
+let ride = (10 * 5)
+console.log(ride);
+
+//除
+let divide = (50 / 2)
+console.log(divide);
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/sum.js" "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/sum.js"
new file mode 100644
index 0000000000000000000000000000000000000000..ddb1e86e6a33a207004c7d1211a968260effe475
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/02-22_\345\212\240\346\267\261\345\212\240\345\207\217\344\271\230\351\231\244/sum.js"
@@ -0,0 +1,21 @@
+function add(x, y) {
+    return parseInt(x) + parseInt(y);
+
+}
+
+exports.add = add;
+
+function divide(x, y) {
+    return parseInt(x) / parseInt(y)
+}
+exports.divide = divide;
+
+function ride(x, y) {
+    return parseInt(x) * parseInt(y)
+}
+exports.ride = ride;
+
+function divide(x, y) {
+    return parseInt(x) / parseInt(y)
+}
+exports.divide = divide;
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/1.txt" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/1.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..9b70b74979577ca256008838d3d443a6c7649644
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/1.txt"	
@@ -0,0 +1 @@
+0.320339529967405
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/2.txt" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/2.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..9b9a61dde3ed9d827b19e06091f0605fc70aba93
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/2.txt"	
@@ -0,0 +1 @@
+0.719599287063234
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/3.txt" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/3.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..db67209468a54b2b14001546876ab400452a298c
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/3.txt"	
@@ -0,0 +1 @@
+0.8052245999317145
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/4.txt" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/4.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..46d672681e472d50317e464a47b51e7bfa3c395b
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/4.txt"	
@@ -0,0 +1 @@
+0.8941153068998917
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/5.txt" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/5.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..5a9bdff9bb92287db9dcf69a53cb261d928ea0a9
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/5.txt"	
@@ -0,0 +1 @@
+0.13117852493040094
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/6.txt" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/6.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..974a2644974836619ea4a537fc1b52c713572624
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/6.txt"	
@@ -0,0 +1 @@
+0.8791106472812369
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/7.txt" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/7.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..1307aa1a9be858397fc1e086907b42d2cf18201f
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/7.txt"	
@@ -0,0 +1 @@
+0.7065665488527184
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/8.txt" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/8.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..149ded27e140919b222b451d2f431f85aacfae5f
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/8.txt"	
@@ -0,0 +1 @@
+0.6474579949908084
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/buffer01.js" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/buffer01.js"
new file mode 100644
index 0000000000000000000000000000000000000000..95ee861e36aa3a372edad84fc80f2b8e32e62899
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/buffer01.js"	
@@ -0,0 +1,20 @@
+//作业,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 ("请随机输入一个数字：")
+}else {
+
+    for(let i =1; i<num; i++){
+        fd[i] = fs.openSync(`${i}.txt`,"w");
+        fs.writeSync(fd[i],`${Math.random()}`);
+        fs.closeSync(fd[i])
+    }
+  }
+}
+module.exports={
+    create:create
+}
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/buffer02.js" "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/buffer02.js"
new file mode 100644
index 0000000000000000000000000000000000000000..9d7f53daa8b68c98fa19fa5328f4323f875b11c1
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs- 02-24\351\232\217\346\234\272\346\225\260/buffer02.js"	
@@ -0,0 +1,6 @@
+let cre = require("./buffer01");
+try{
+    cre.create(9)
+}catch(error){
+    console.log(error.message);
+}
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/async6.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/async6.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..c5f7f7774714cbc2e3743bcbc6c6deb61dcf1d3c
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/async6.txt"
@@ -0,0 +1 @@
+tody我们学习异步文件写入，有点晕oooo
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/asyncSample.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/asyncSample.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..db30b56f192a8065c7da8743084d457e05b45f03
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/asyncSample.txt"
@@ -0,0 +1 @@
+学习简单我不晕了哦耶
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs01.js" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs01.js"
new file mode 100644
index 0000000000000000000000000000000000000000..6e969fc9d546fd1b4d716a1993615e13c086497a
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs01.js"
@@ -0,0 +1,23 @@
+let fs = require("fs");
+fs.open("./async6.txt",'w',function (err,fd) {
+
+if(err){
+    console.log(err);
+}else{
+    let msg ="tody我们学习异步文件写入，有点晕oooo";
+    bf =Buffer.from(msg);
+    fs.write(fd,bf,function(err,wirteNum,bf2){
+        console.log(err);
+        console.log(writeNum); 
+        console.log(bf2.toString());
+        console.log("done!");
+    });
+    console.log("写入完成！");
+    //异步的文件关闭
+    fs.close(fd,function(err){
+        console.log("我被关闭了，不要想我哦");
+        console.log(err);
+    })
+}    
+});
+console.log('study node fs async');
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs02.js" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs02.js"
new file mode 100644
index 0000000000000000000000000000000000000000..2328bc9086eb4b277b193ae59ef4f04b47b79ede
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs02.js"
@@ -0,0 +1,32 @@
+let fs = require("fs");
+let createFile = {
+    createPath: function(dir){
+        //文件可能存在
+        if(fs.existsSync(dir)){
+            return;
+        }
+        fs.mkdirSync(dir);
+    },
+    createContent:function(num){
+        return num+'';
+    },
+    createFile:function(filePath,content){
+        //flags w 可写
+        console.log(filePath);
+        let fd = fs.openSync(filePath,'w');
+        fs.writeSync(fd,content);
+        fs.closeSync(fd);
+
+    },
+    handle:function(num,dir){
+        //目录不存则创建
+        this.createPath(dir);
+        //循环的创建文件与内容
+        for(i = 1; i<num; i++){
+            let fileName = dir+'/'+i+'.txt';//可以进一步抽离
+            let content = this.createContent(i);
+            this.createFile(fileName,content);
+        }
+    }
+}
+createFile.handle(10,'./homework2');
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs03.js" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs03.js"
new file mode 100644
index 0000000000000000000000000000000000000000..b76fccda70dc88f3d52ed5f910663ef6817e892f
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/fs03.js"
@@ -0,0 +1,13 @@
+let fs = require("fs");
+
+let result=fs.writeFileSync("./sample2.txt","测试下option",{flag:'a'});
+
+//异步文件的写入
+fs.writeFile("./asyncSample.txt","学习简单我不晕了哦耶",function(err){
+    if(err){
+        console.log("失败了");
+    }else{
+        console.log("成功了");
+    }
+    console.log(arguments);
+});
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/1.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/1.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..56a6051ca2b02b04ef92d5150c9ef600403cb1de
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/1.txt"
@@ -0,0 +1 @@
+1
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/2.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/2.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..d8263ee9860594d2806b0dfd1bfd17528b0ba2a4
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/2.txt"
@@ -0,0 +1 @@
+2
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/3.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/3.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..e440e5c842586965a7fb77deda2eca68612b1f53
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/3.txt"
@@ -0,0 +1 @@
+3
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/4.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/4.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..bf0d87ab1b2b0ec1a11a3973d2845b42413d9767
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/4.txt"
@@ -0,0 +1 @@
+4
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/5.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/5.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..7813681f5b41c028345ca62a2be376bae70b7f61
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/5.txt"
@@ -0,0 +1 @@
+5
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/6.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/6.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..62f9457511f879886bb7728c986fe10b0ece6bcb
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/6.txt"
@@ -0,0 +1 @@
+6
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/7.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/7.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..c7930257dfef505fd996e1d6f22f2f35149990d0
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/7.txt"
@@ -0,0 +1 @@
+7
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/8.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/8.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..301160a93062df23030a69f4b5e4d9bf71866ee9
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/8.txt"
@@ -0,0 +1 @@
+8
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/9.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/9.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..f11c82a4cb6cc2e8f3bdf52b5cdeaad4d5bb214e
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/homework2/9.txt"
@@ -0,0 +1 @@
+9
\ No newline at end of file
diff --git "a/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/sample2.txt" "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/sample2.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..fe01dd51e2a01c9eea089fe8716195e3abcda16f
--- /dev/null
+++ "b/\346\235\250\347\276\216\351\233\252/fs-02-23-\347\273\203\344\271\240/sample2.txt"
@@ -0,0 +1 @@
+测试下option
\ No newline at end of file