save project

func.py

@@ -4,7 +4,12 @@
 # file.write("小强:21本")
 # file.write("李明:21本")
 # file.close()
+new_data=''
 with open(r"C:\Users\Windows\Desktop\test.txt",'r',encoding="utf-8") as file1:
     for data in file1:
         if '小强:21本'in data:
-            print('数据在文件中')
\ No newline at end of file
+            #print('数据在文件中')
+            data.replace("小强:21本","小强:11本")
+        new_data += data
+with open(r"C:\Users\Windows\Desktop\test.txt",'w',encoding="utf-8") as file1:
+    file1.write(new_data)
\ No newline at end of file