save project

diy.py

+new_data=''
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as f: 
+    for data in f:
+        if '小强: 12本' in data:
+            data=data.replace('小强: 12本','小强: 11本')
+        print(data)
+        new_data+=data
+
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as f:
+    for a in f:
+        if '小兰: 12本' in a:
+            a=a.replace('小兰: 12本','小兰: 14本')
+        print(a)
+        new_a+=a
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8') as f:
+    f.write(new_data) 
\ No newline at end of file