diff --git a/homework_01_python/1.py b/homework_01_python/1.py
new file mode 100644
index 0000000000000000000000000000000000000000..adca6d42b76244e9a820a970a28c05e9b17d4fad
--- /dev/null
+++ b/homework_01_python/1.py
@@ -0,0 +1,9 @@
+str="One is always on a strange road, watching strange scenery and listening to strange music. Then one day, you will find that the things you try hard to forget are already gone."
+str=str.replace(",",'')
+str=str.replace(".",'')
+word = str.split(' ')
+d = dict()
+for s in word:
+    if s!='':
+        d[s]=d.get(s,0)+1
+print(d)
\ No newline at end of file
diff --git a/homework_01_python/10.py b/homework_01_python/10.py
new file mode 100644
index 0000000000000000000000000000000000000000..f4af1795c8ae224571ed74032d4c3c2da320ed52
--- /dev/null
+++ b/homework_01_python/10.py
@@ -0,0 +1,23 @@
+
+def fun(num,k):
+    
+    for i in range(len(num)):
+        sums=0
+        for j in range(i,len(num)):
+            sums+=int(num[j])
+            if sums>=k:
+                if sums%k==0:
+                    return True
+    return False
+
+if __name__ == '__main__':
+    print("Enter an array:")
+    #23,2,4,6,7
+    #23,2,6,4,7
+    input_num = input()
+    print("Enter an array:")
+    k = int(input())
+    num = input_num.split(",")
+
+ 
+    print(fun(num,k))
\ No newline at end of file
diff --git a/homework_01_python/11.py b/homework_01_python/11.py
new file mode 100644
index 0000000000000000000000000000000000000000..3706d9c5eeb394a9c5234137b79ff8d435fd5b1d
--- /dev/null
+++ b/homework_01_python/11.py
@@ -0,0 +1,10 @@
+input_str = input()
+d = dict()
+for s in input_str:
+    d[s]=d.get(s,0)+1
+
+
+if(sum(d.values())>len(d)):
+    print("False")
+else:
+    print("True")
\ No newline at end of file
diff --git a/homework_01_python/12.py b/homework_01_python/12.py
new file mode 100644
index 0000000000000000000000000000000000000000..d2a0b5230e1a6059e28e4e087d4ecfdff622780c
--- /dev/null
+++ b/homework_01_python/12.py
@@ -0,0 +1,12 @@
+input_str = input()
+dict_letter = dict()
+for s in input_str:
+    dict_letter[s]=dict_letter.get(s,0)+1
+
+
+b=dict_letter.get('b',0)
+a=dict_letter.get('a',0)
+l=dict_letter.get('l',0)/2
+o=dict_letter.get('o',0)/2
+n=dict_letter.get('n',0)
+print(min(b,a,l,o,n))
\ No newline at end of file
diff --git a/homework_01_python/13.py b/homework_01_python/13.py
new file mode 100644
index 0000000000000000000000000000000000000000..fc4d4d9bb69b47333fba9088963962d911060557
--- /dev/null
+++ b/homework_01_python/13.py
@@ -0,0 +1,13 @@
+import random
+import string
+
+activation_code = string.ascii_uppercase + '0123456789'
+num=200#激活码数量
+length=11#激活码长度，KR603guyVvR是一个激活码
+
+for i in range(num):
+    code=''
+    for j in range(length):
+        
+        code += random.choice(activation_code)
+    print(code)
\ No newline at end of file
diff --git a/homework_01_python/14.py b/homework_01_python/14.py
new file mode 100644
index 0000000000000000000000000000000000000000..676e7b2d81e5056b3f5799e610bac85b88a9777d
--- /dev/null
+++ b/homework_01_python/14.py
@@ -0,0 +1,14 @@
+import os
+path ='/mnt/sunxu/code/machinelearning_homework/homework_01_python'
+
+name = []
+'''
+root所指的是当前正在遍历的这个文件夹的本身的地址
+dirs是一个list内容是该文件夹中所有的目录的名字(不包括子目录)
+files是list ,内容是该文件夹中所有的文件(不包括子目录)
+'''
+for root,dirs,files in os.walk(path):
+    for i in files:
+        if os.path.splitext(i)[1]=='.py':
+            name.append(i)  
+print(name)
\ No newline at end of file
diff --git a/homework_01_python/15.py b/homework_01_python/15.py
new file mode 100644
index 0000000000000000000000000000000000000000..fd7a5a32363ae12c274f9dabbaad18ff5b9bda74
--- /dev/null
+++ b/homework_01_python/15.py
@@ -0,0 +1,20 @@
+import os
+path='/mnt/sunxu/code/machinelearning_homework/homework_01_python'
+count_py = 0
+count_md = 0
+
+for root,dirs,files in os.walk(path):
+    for i in files:
+        
+        if os.path.splitext(i)[1]=='.py':            
+            for count, line in enumerate(open(i, 'r', encoding='utf-8').readlines()):            
+                count+=1
+        count_py+=count
+
+        if os.path.splitext(i)[1]=='.md':
+            for count, line in enumerate(open(i, 'r', encoding='utf-8').readlines()):            
+                count+=1
+        count_md+=count
+
+print('py:%d'%(count_py))
+print('md:%d'%(count_md))
\ No newline at end of file
diff --git a/homework_01_python/2.py b/homework_01_python/2.py
new file mode 100644
index 0000000000000000000000000000000000000000..3a879923fec52d24987d029ef8872495235bf183
--- /dev/null
+++ b/homework_01_python/2.py
@@ -0,0 +1,9 @@
+a=[1,2,3,4]
+count=0
+for i in a:
+    for j in a:
+        for k in a:
+           if i!=k and j!=k and i!=j:
+                print(i,j,k)
+                count+=1
+print(count)
\ No newline at end of file
diff --git a/homework_01_python/3.py b/homework_01_python/3.py
new file mode 100644
index 0000000000000000000000000000000000000000..4b31191e186707d4ec1c2ca0a59309ea20714528
--- /dev/null
+++ b/homework_01_python/3.py
@@ -0,0 +1,12 @@
+money= int(input())
+profit = [1000000,600000,400000,200000,100000,0]
+commission = [0.01,0.015,0.03,0.05,0.075,0.1]
+result = 0
+
+
+for i in range(6):
+    
+    if money > profit[i]: 
+        result += (money-profit[i])*commission[i]
+        money = profit[i]
+print(result)
diff --git a/homework_01_python/4.py b/homework_01_python/4.py
new file mode 100644
index 0000000000000000000000000000000000000000..2b87fe29025ef7fdc375b0ecf97c9c2d700a26a5
--- /dev/null
+++ b/homework_01_python/4.py
@@ -0,0 +1,4 @@
+for i in range(1,9):
+    for j in range(1,i+1):
+        print('{}x{}={}\t'.format(i,j,i*j),end="")
+    print('\n')
\ No newline at end of file
diff --git a/homework_01_python/5.py b/homework_01_python/5.py
new file mode 100644
index 0000000000000000000000000000000000000000..1796f312e88bad21cc905f1796888d47c8809b23
--- /dev/null
+++ b/homework_01_python/5.py
@@ -0,0 +1,8 @@
+a=2
+sum=0
+i=0
+while(a<=100):
+    sum += pow(-1,i)*a
+    a=a+1
+    i=i+1
+print(sum)
\ No newline at end of file
diff --git a/homework_01_python/6.py b/homework_01_python/6.py
new file mode 100644
index 0000000000000000000000000000000000000000..00760212f1c550a7be8a2ae1695f8d6030f2c414
--- /dev/null
+++ b/homework_01_python/6.py
@@ -0,0 +1,18 @@
+list=[1, 10, 4, 2, 9, 2, 34, 5, 9, 8, 5, 0]
+index = range(12)
+copy=list[:]
+
+for i in range(len(list)):
+    for j in range(i+1,len(list)):
+        if list[i]>list[j]:
+            temp=list[i]
+            list[i]=list[j]
+            list[j]=temp
+print(list)
+
+indexlist=[]
+for a in list:
+    num  = copy.index(a)
+    copy[num]=-1
+    indexlist.append(num)
+print(indexlist)
\ No newline at end of file
diff --git a/homework_01_python/7.py b/homework_01_python/7.py
new file mode 100644
index 0000000000000000000000000000000000000000..c022cede11d4f39b052c7f11b9bc79d7629f02d6
--- /dev/null
+++ b/homework_01_python/7.py
@@ -0,0 +1,18 @@
+import numpy as np
+import sys
+print("target:")
+target = int(input())
+a = np.array([
+[1, 4, 7, 11, 15],
+[2, 5, 8, 12, 19],
+[3, 6, 9, 16, 22],
+[10, 13, 14, 17, 24],
+[18, 21, 23, 26, 30]
+])
+
+for i in range(a.shape[0]):
+    for j in range(a.shape[1]):
+        if a[i][j]==target:
+            print("True")
+            sys.exit(0)
+print("False")
\ No newline at end of file
diff --git a/homework_01_python/8.py b/homework_01_python/8.py
new file mode 100644
index 0000000000000000000000000000000000000000..97988f676c76393dd18fa75d39924b29d561610e
--- /dev/null
+++ b/homework_01_python/8.py
@@ -0,0 +1,13 @@
+
+def factor(num):
+    s=set()
+    for i in range(1,num):
+        if num%i==0:
+            s.add(i)
+            s.add(num/i)
+    return s 
+  
+if __name__ =='__main__':
+    for i in range(2,1000):
+        if 2*i == sum(factor(i)):
+            print(i)
\ No newline at end of file
diff --git a/homework_01_python/9.py b/homework_01_python/9.py
new file mode 100644
index 0000000000000000000000000000000000000000..4c88c156a7755ee64e2df3ea7297be40c6d3b973
--- /dev/null
+++ b/homework_01_python/9.py
@@ -0,0 +1,16 @@
+def isone(n):
+    sum=0
+    for i in range(len(n)):
+        sum += pow(int(n[i]),2)
+    n=sum 
+    if n==1:       
+        return True
+    elif len(str(n))==1 and n!=1:
+        return False
+    else:
+        return isone(str(n)) 
+
+if __name__ == '__main__':
+    print("n:")
+    n = input()
+    print(isone(n))
\ No newline at end of file
diff --git a/name.txt b/name.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dee636d04e37f6aa13742e6f152b52d3e89268fc
--- /dev/null
+++ b/name.txt
@@ -0,0 +1,2 @@
+孙旭
+2022100850
\ No newline at end of file