save project

diy.py

+files=open(r'C:\Users\EDZ\Desktop\text.txt','w',encoding='utf-8')
+files.write('小强：10本')
+
+
+
+
+new_data=''
+with open(r'C:\Users\EDZ\Desktop\text.txt','r',encoding='utf-8') as files:
+    for data in files:
+        if '小强：10本' in data:
+            data=data.replace('小强：10本','小强：11本')
+        new_data+=data
+with open(r'C:\Users\EDZ\Desktop\text.txt','w',encoding='utf-8') as files:
+    files.write(new_data)
+print(new_data)
+  
+
+