diff --git "a/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat" "b/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..ac7e603f607b06a8dea612634ab3d16bac6cb9d2
--- /dev/null
+++ "b/1,\350\256\276\347\275\256\350\264\246\345\217\267.bat"
@@ -0,0 +1,2 @@
+git config --global user.name "苏瑜煌"
+git config --global user.email "1394157072@qq.com"
\ No newline at end of file
diff --git "a/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat" "b/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..1ec69c41c0deeb98cfd6290e04f42c025b86b003
--- /dev/null
+++ "b/2,\345\210\207\346\215\242\345\210\206\346\224\257.bat"
@@ -0,0 +1,2 @@
+git branck 39
+git checkout 39
\ No newline at end of file
diff --git "a/3,\350\207\252\345\212\250\346\217\220\344\272\244.bat" "b/3,\350\207\252\345\212\250\346\217\220\344\272\244.bat"
new file mode 100644
index 0000000000000000000000000000000000000000..0fbd52fa8111ae13721da1f2c119822552292813
--- /dev/null
+++ "b/3,\350\207\252\345\212\250\346\217\220\344\272\244.bat"
@@ -0,0 +1,3 @@
+git add .
+git commit -m "AutoPush"
+git push
\ No newline at end of file
diff --git a/work/BubbleSort/BubbleSort.class b/work/BubbleSort/BubbleSort.class
new file mode 100644
index 0000000000000000000000000000000000000000..9ce42c9266d6625452361139d2a77d1a702a631a
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diff --git a/work/BubbleSort/BubbleSort.java b/work/BubbleSort/BubbleSort.java
new file mode 100644
index 0000000000000000000000000000000000000000..6aed21c752a5893ee322b33c5736e4faad427e40
--- /dev/null
+++ b/work/BubbleSort/BubbleSort.java
@@ -0,0 +1,19 @@
+import java.util.*;
+public class BubbleSort {
+    public static void main(String[] args) {
+        int[] arr = {12,56,3,78,39};//,1,2,5,4,6,7,8,33,22,44,55,66,77
+		long n1 = System.nanoTime();
+        for (int i = 0; i < arr.length; i++) {
+            for (int j = 0; j < arr.length - 1 - i; j++) {//ÿ��ѭ����������ĵ�����
+                if (arr[j] > arr[j + 1]) {
+                    int temp = arr[j];
+                    arr[j] = arr[j + 1];
+                    arr[j + 1] = temp;
+                }
+            }
+        }
+        System.out.println(Arrays.toString(arr));
+		long n2 = System.nanoTime();
+		System.out.printf("\nð��������ʱ��"+(n2-n1)/1000000+"����\n");
+    }
+}
\ No newline at end of file
diff --git a/work/InsertSort/InsertSort.class b/work/InsertSort/InsertSort.class
new file mode 100644
index 0000000000000000000000000000000000000000..9f704a3238c63bbd749203d21e5034e06ec21e2b
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diff --git a/work/InsertSort/InsertSort.java b/work/InsertSort/InsertSort.java
new file mode 100644
index 0000000000000000000000000000000000000000..12441f299f959dc53044a1c31bc7772134b3c00f
--- /dev/null
+++ b/work/InsertSort/InsertSort.java
@@ -0,0 +1,27 @@
+import java.util.*;
+public class InsertSort{
+	public static void main(String[] args) {
+     int[] array={12,56,3,78,39};
+	 double n1 = System.nanoTime();
+	 test(array);
+	 double n2 = System.nanoTime();
+	 System.out.printf("\n����������ʱ��"+(n2-n1)/1000000+"����\n");
+	}
+
+	public static void test(int[] array) {
+		int i,j,temp;
+		for(i=1;i<array.length;i++) {//i 1~4
+			temp=array[i];
+			for(j=i-1;j>=0;--j) {//ע������--j���л�����j��-1
+				if(temp>array[j]) {
+					break;
+				}else {
+					array[j+1]=array[j];
+				}
+			}
+			array[j+1]=temp;
+		}
+		System.out.println(Arrays.toString(array));
+	}
+}
+
diff --git a/work/MergeSort/Main.class b/work/MergeSort/Main.class
new file mode 100644
index 0000000000000000000000000000000000000000..2cefec554cf196ebb2ca17909cc12af70f1df685
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diff --git a/work/MergeSort/Main.java b/work/MergeSort/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..1e5c270ddb6c3b53393b3ee7e9eaab57f8c8d9c2
--- /dev/null
+++ b/work/MergeSort/Main.java
@@ -0,0 +1,49 @@
+import java.util.Arrays;
+public class Main{
+    public static void main(String[] args){
+        int[] arr = {12,56,3,78,39};
+		double n1 = System.nanoTime();
+        sort(arr,0,arr.length-1);
+        System.out.println(Arrays.toString(arr));
+		double n2 = System.nanoTime();
+		System.out.printf("\n�鲢������ʱ��"+(n2-n1)/1000000+"����\n");
+    }
+
+	public static int[] sort(int[] a,int low,int high){
+        int mid = (low+high)/2;
+        if(low<high){
+            sort(a,low,mid);
+            sort(a,mid+1,high);
+            //���ҹ鲢
+            merge(a,low,mid,high);
+        }
+        return a;
+    }
+
+	public static void merge(int[] a, int low, int mid, int high) {
+        int[] temp = new int[high-low+1];
+        int i= low;
+        int j = mid+1;
+        int k=0;
+        // �ѽ�С�������Ƶ���������
+        while(i<=mid && j<=high){
+            if(a[i]<a[j]){
+                temp[k++] = a[i++];
+            }else{
+                temp[k++] = a[j++];
+            }
+        }
+        // �����ʣ������������� 
+        while(i<=mid){
+            temp[k++] = a[i++];
+        }
+        // ���ұ߱�ʣ�������������
+        while(j<=high){
+            temp[k++] = a[j++];
+        }
+        // ���������������nums����
+        for(int x=0;x<temp.length;x++){
+            a[x+low] = temp[x];
+        }
+    }
+}
\ No newline at end of file
diff --git a/work/QuickSort/QuickSort.class b/work/QuickSort/QuickSort.class
new file mode 100644
index 0000000000000000000000000000000000000000..efa9c85d56f718eb8b26263a97bac61770b4b66e
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diff --git a/work/QuickSort/QuickSort.java b/work/QuickSort/QuickSort.java
new file mode 100644
index 0000000000000000000000000000000000000000..7714724145be342e34e28e247dff4507d81625ba
--- /dev/null
+++ b/work/QuickSort/QuickSort.java
@@ -0,0 +1,48 @@
+import java.util.Arrays;
+ 
+public class QuickSort{
+    public static void main(String[] args){
+        Integer[] arr = {12,56,3,78,39};
+		double n1 = System.nanoTime();
+        quickSort(arr,0,arr.length-1);
+        System.out.println(Arrays.toString(arr));
+		double n2 = System.nanoTime();
+		System.out.printf("\n����������ʱ��"+(n2-n1)/1000000+"����\n");
+    }
+ 
+    //���򷽷�-�����С��������
+    public static void quickSort(Integer[] arr,int low,int high){//l=0 h=9
+        if(low < high){
+            int part=partition(arr,low,high);
+            //�ݹ����
+            quickSort(arr,low,part-1);
+            quickSort(arr,part+1,high);
+        }
+    }
+ 
+    //���ַ���
+    private static int partition(Integer[] arr,int low,int high){
+        //ʹ�� r[low]��Ϊ����Ԫ��
+        int pivot = arr[low];
+        //�����˽�������ɨ��
+        while(low < high){
+            while(low<high && arr[high] >= pivot) {
+				high--;
+			}
+            //���� pivot С��Ԫ������Ͷ�
+            arr[low] = arr[high];
+            while(low<high && arr[low] <= pivot){
+				low++;
+			}
+            //���� pivot ���Ԫ������߶�
+            arr[high] = arr[low];
+        }
+        //��������
+        arr[low]=pivot;
+		//System.out.println(Arrays.toString(arr));
+
+        //��������Ԫ��λ��
+        return low;
+    }
+ 
+}
\ No newline at end of file
diff --git a/work/SelectSort/SelectSort.class b/work/SelectSort/SelectSort.class
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index 0000000000000000000000000000000000000000..a55d0575c12ae4c664cb8c5808ee359f6f09ed70
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diff --git a/work/SelectSort/SelectSort.java b/work/SelectSort/SelectSort.java
new file mode 100644
index 0000000000000000000000000000000000000000..722fa6f051f5c6cecd395ac80d958fbcf629eae9
--- /dev/null
+++ b/work/SelectSort/SelectSort.java
@@ -0,0 +1,32 @@
+import java.util.Arrays;
+public class SelectSort {
+	public static void main(String[] args) {
+		//ģ������
+		int[] array = {12,56,3,78,39};
+		long n1 = System.nanoTime();
+		selectSort(array);
+		System.out.println(Arrays.toString(array));
+		long n2 = System.nanoTime();
+		System.out.printf("\nѡ��������ʱ��"+(n2-n1)/1000000+"����\n");
+	}
+	//12,56,3,78,39
+	public static void selectSort(int[] arr){
+		for(int i = 0; i < arr.length-1; i++){//ÿ��ѭ����������С�ķ���ǰ��
+			int min = i;
+			for(int j = i+1; j <arr.length ;j++){
+				if(arr[j]<arr[min]){
+					min = j;
+				}
+			}
+			if(min!=i){
+				swap(arr, i, min);
+			}
+		}
+	}
+	//���������Ԫ�ؼ佻��
+	public static void swap(int[] arr,int a,int b){
+		int temp = arr[a];
+		arr[a] = arr[b];
+		arr[b] = temp;
+	}
+}
\ No newline at end of file
diff --git a/work/ShellSort/ShellSort.class b/work/ShellSort/ShellSort.class
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index 0000000000000000000000000000000000000000..bda7e07a33f7e29c6aa38a300b8d1a04b093df70
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diff --git a/work/ShellSort/ShellSort.java b/work/ShellSort/ShellSort.java
new file mode 100644
index 0000000000000000000000000000000000000000..f002c122226e0e5b9d821842ebe4862f28677932
--- /dev/null
+++ b/work/ShellSort/ShellSort.java
@@ -0,0 +1,30 @@
+import java.util.Arrays;
+public class ShellSort {
+    public static void main(String[] args) {
+        int[] arr = {12,56,3,78,39};
+		double n1 = System.nanoTime();
+        shellSort(arr);
+		System.out.println(Arrays.toString(arr));
+		double n2 = System.nanoTime();
+		System.out.printf("\nϣ��������ʱ��"+(n2-n1)/1000000+"����\n");
+    }
+
+    public static void shellSort(int[] arr) {
+        //step:����
+        for (int step = arr.length / 2; step > 0; step /= 2) {
+            //��һ������������бȽ� [step,arr.length)
+            for (int i = step; i < arr.length; i++) {
+                int value = arr[i];
+                int j;
+
+                //�Բ��������о����Ԫ�ؽ��бȽ�
+                for (j = i - step; j >= 0 && arr[j] > value; j -= step) {
+                    //jΪ�������ȡֵ��j+stepΪ��������������Ķ�Ӧֵ��
+                    arr[j + step] = arr[j]; 
+                }
+                //��ʱstepΪһ��������[j + step]Ϊ�������ϵij�ʼ����ֵ
+                arr[j + step] = value;  
+            }
+        }
+    }
+}
\ No newline at end of file
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