save project

diy.py

 # 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
+new_data=""
 with open(r'C:\Users\XMBC\Desktop\hhh\test.txt','r',encoding='utf-8')as file1:
     # file1.write('小丽：11本\n')
     # file1.write('李文：9本\n')
@@ -6,9 +7,19 @@ with open(r'C:\Users\XMBC\Desktop\hhh\test.txt','r',encoding='utf-8')as file1:
     #file1.write('小兰：12本\n')
     # file1.write('小强:12本\n')
     # file1.write('李明:15本\n')
-     for i in file1:
-         if '小强:12本' or '小兰:12本' in i:
-             
-            i.replace('小强:12本','小强:11本')
-            
 
+    for data in file1:
+        if '小强:12本' in data:
+            data=data.replace('小强:12本','小强:11本')
+        if'小兰:12本' in data:
+            data=data.replace('小兰:12本','小兰:14本')
+        new_data+=data
+with open(r'C:\Users\XMBC\Desktop\hhh\test.txt','w',encoding='utf-8')as file1:
+    file1.write(new_data)
+with open(r'C:\Users\XMBC\Desktop\hhh\test.txt','r',encoding='utf-8')as file1:
+    a=file1.read()
+    print(a)
+
+
+
+