save project

diy.py

@@ -5,6 +5,18 @@
 # file1.write('李文：9本\n')
 # file1.write('张伟：16本\n')
 # file1.close()
+new_data=''
 with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8') as file1:
     # file1.write('小强：12本\n')
-    # file1.write('李强：15本\n')
\ No newline at end of file
+    # file1.write('李强：15本\n')
+    for data in file1:
+        if '小强：12本'in data:
+            data=data.replace('小强：12本','小强：11本')
+        if '小兰：12本'in data:
+            data=data.replace('小兰：12本','小兰：11本')
+        new_data+=data
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8') as file1:
+    file1.write(new_data)
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as file1:
+    a=i.read()
+print(a)
\ No newline at end of file