diff --git "a/2\346\234\21016\344\275\234\344\270\232/1.txt" "b/2\346\234\21016\344\275\234\344\270\232/1.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..06e8971dc662a94702e1d094b4c2ba640351f945
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/1.txt"
@@ -0,0 +1 @@
+540
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/10.txt" "b/2\346\234\21016\344\275\234\344\270\232/10.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..f0b5c72cad2a31240e128db4bc833e782855f796
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/10.txt"
@@ -0,0 +1 @@
+57
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/100.txt" "b/2\346\234\21016\344\275\234\344\270\232/100.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..84efa7e06a44889fdf6b29b7ddd360dfd91c8ce8
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/100.txt"
@@ -0,0 +1 @@
+801
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/11.txt" "b/2\346\234\21016\344\275\234\344\270\232/11.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..f70d7bba4ae1f07682e0358bd7a2068094fc023b
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/11.txt"
@@ -0,0 +1 @@
+42
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/12.txt" "b/2\346\234\21016\344\275\234\344\270\232/12.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..2ddfe0b71fc9f28f045b747405e236aebe6c1c57
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/12.txt"
@@ -0,0 +1 @@
+897
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/13.txt" "b/2\346\234\21016\344\275\234\344\270\232/13.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..1fde7522a771ec6f5d8c6237abe49bac75f547c8
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/13.txt"
@@ -0,0 +1 @@
+434
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/14.txt" "b/2\346\234\21016\344\275\234\344\270\232/14.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..e3e1916cf59ce0dff1e15c2e837a89ff67d9e40d
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/14.txt"
@@ -0,0 +1 @@
+187
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/15.txt" "b/2\346\234\21016\344\275\234\344\270\232/15.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..f520b6ed4c0830e653ac02c1f8eec8c51d171997
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/15.txt"
@@ -0,0 +1 @@
+530
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/16.txt" "b/2\346\234\21016\344\275\234\344\270\232/16.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..2a095c4d568d0359f8380b36c8b4cd2178e3e854
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/16.txt"
@@ -0,0 +1 @@
+271
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/17.txt" "b/2\346\234\21016\344\275\234\344\270\232/17.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..9754915269eca9a8e68210cbe363f9fa9be817e1
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/17.txt"
@@ -0,0 +1 @@
+259
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/18.txt" "b/2\346\234\21016\344\275\234\344\270\232/18.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..8405587b4b94de3ef29dd2bd00d8296678a135a6
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/18.txt"
@@ -0,0 +1 @@
+767
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/19.txt" "b/2\346\234\21016\344\275\234\344\270\232/19.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..4701cc793111aafe3a1e6f48d82e5b8c8a38943e
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/19.txt"
@@ -0,0 +1 @@
+150
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/2.txt" "b/2\346\234\21016\344\275\234\344\270\232/2.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..25493604ef3be68946ec9929d26356c138041335
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/2.txt"
@@ -0,0 +1 @@
+395
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/20.txt" "b/2\346\234\21016\344\275\234\344\270\232/20.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..54a584dece54566d69277ced81fff9d12cbd7243
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/20.txt"
@@ -0,0 +1 @@
+514
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/21.txt" "b/2\346\234\21016\344\275\234\344\270\232/21.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..9444b9b2e2f075ad73b8c0a81aa0e4f3b6dbbf7f
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/21.txt"
@@ -0,0 +1 @@
+737
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/22.txt" "b/2\346\234\21016\344\275\234\344\270\232/22.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..6bd680a650ae04a8c4c21984c9267c37dcd331f4
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/22.txt"
@@ -0,0 +1 @@
+711
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/23.txt" "b/2\346\234\21016\344\275\234\344\270\232/23.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..c72784c8c508343b406600858d9969525d9bf7fe
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/23.txt"
@@ -0,0 +1 @@
+235
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/24.txt" "b/2\346\234\21016\344\275\234\344\270\232/24.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..4800c7da68cf871d3228361b50e329df2115f8b7
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/24.txt"
@@ -0,0 +1 @@
+58
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/25.txt" "b/2\346\234\21016\344\275\234\344\270\232/25.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..fa59ff276dba81ce358e8dfb002082053d6686cd
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/25.txt"
@@ -0,0 +1 @@
+134
\ No newline at end of file
diff --git "a/2\346\234\21016\344\275\234\344\270\232/26.txt" "b/2\346\234\21016\344\275\234\344\270\232/26.txt"
new file mode 100644
index 0000000000000000000000000000000000000000..2da56739379b4c88eeb8bcda0c2ce6fbd891af9d
--- /dev/null
+++ "b/2\346\234\21016\344\275\234\344\270\232/26.txt"
@@ -0,0 +1 @@
+418
\ No newline at end of file
diff --git a/zy.js b/zy.js
new file mode 100644
index 0000000000000000000000000000000000000000..aac8b7b9853b4298503681d4c78c2b5146a66f7d
--- /dev/null
+++ b/zy.js
@@ -0,0 +1,21 @@
+let fs=require("fs");
+//同步写入
+var time1=new Date().getTime();
+
+for(i=1;i<=1000;i++){
+    fs.writeFileSync("./files"+i+".txt","中午吃啥");
+              
+}
+var time2=new Date().getTime();
+console.log( "同步写入:"+(time2-time1)+"毫秒");
+
+var time3=new Date().getTime();
+//异步写入
+for(i=1;i<=1000;i++){
+  
+    fs.writeFile("./files2"+i+".txt","中午吃啥",function(err){
+      
+    });     
+}
+var time4=new Date().getTime();
+console.log( "异步写入:"+(time4-time3)+"毫秒");
\ No newline at end of file
diff --git "a/\346\235\234\347\202\234\345\230\211/use.js" "b/\346\235\234\347\202\234\345\230\211/use.js"
new file mode 100644
index 0000000000000000000000000000000000000000..84733f3d652410a8f540c9617a06f3c574e14571
--- /dev/null
+++ "b/\346\235\234\347\202\234\345\230\211/use.js"
@@ -0,0 +1,6 @@
+let obj=require("./ys.js");
+// 使用模块需要使用require
+console.log(obj);
+// 模块就是对象
+console.log(obj.jian(4,6));
+console.log(obj.chu(0,4));
diff --git "a/\346\235\234\347\202\234\345\230\211/ys.js" "b/\346\235\234\347\202\234\345\230\211/ys.js"
new file mode 100644
index 0000000000000000000000000000000000000000..c84679976040d2174556592af354ea9e29a9770b
--- /dev/null
+++ "b/\346\235\234\347\202\234\345\230\211/ys.js"
@@ -0,0 +1,24 @@
+// ### 作业：写个加减乘除的模块（尽量少写暴露,要考虑复用性）
+// ，供外部使用. 作业每个分支要建一个目录（自己名字）
+let obj={
+    jia:function(a,b){
+        return a+b;
+    },
+    jian:function(a,b){
+       return a-b;
+        
+    },
+    cheng:function(a,b){
+        return a*b;
+    },
+    chu:function(a,b){
+        if(a==0){
+            return "错误";
+        }else{
+            return a/b;
+        }
+    }
+}
+module.exports = obj;
+// 相当于对外暴露的空对象
+