save project

book.txt

+悟空 12 15 11 12 11 12 14 13 15 17
+小贝 11 14 17 14 19 10 17 16 15 14
+诺依 12 17 15 14 13 19 18 11 11 10

diy.py

-new_data=''
-with open(r'C:\Users\no3\Desktop\book.txt','r',encoding='utf-8') as file1:
-    for data in file1:
+file=open(r"C:\Users\no3\Documents\lesson12-1\sales_list.txt",'r',encoding='utf-8') 
+with open(r"C:\Users\no3\Documents\lesson12-1\sales_list.txt",'r',encoding='utf-8')as file:
\ No newline at end of file
-        if '12345' in data:
-            data.replace('12345','12321')
-        new_data += data
-with open(r'C:\Users\no3\Desktop\book.txt','w',encoding='utf-8') as file1:
-    file1.write(new_data)
-
-with open(r'C:\Users\no3\Desktop\book.txt','r',encoding='utf-8') as file1:
-    a=file1.read()
-    print(a)
\ No newline at end of file