save project

11.py

-new_data=""
-with open(r'C:\Users\PC\Desktop\123\zhangxiaofan.txt',"r",encoding="utf_8")as file1:
-    for data in file1:
-        if "xiaogangn"in data:
-            data=data.replace("xiaogangn","1")
-        new_data+=data
-with open(r'C:\Users\PC\Desktop\123\zhangxiaofan.txt',"w",encoding="utf_8")as file1:
-    file1.write(new_data)
\ No newline at end of file