save project

diy.py

+#with open(r"C:\Users\Administrator\Desktop\test.txt","a",encoding="utf-8")as filel:
+    #filel.write("小强:12本\n")
+    #filel.write("李明:15本\n")
+new_data=''
+with open(r"C:\Users\Administrator\Desktop\test.txt","r",encoding="utf-8")as filel:
+    for data in filel:  
+        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\Administrator\Desktop\test.txt","w",encoding="utf-8")as filel:
+    filel.write(new_data)
+    
+
+
+
+       
+