save project

diy.py

 # 写入同学们的捐赠明细：
 # 写入同学们的捐赠明细：
+new = ""
 with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as file:
 with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as file:
-    #file.write("1\n")
-    #file.write("2")
-    for i in file:
-        if "2" in i:
+    for a in file:
+        a = a.replace('1','3')
+        print(a)
\ No newline at end of file
-            print("nb")
\ No newline at end of file