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'
 # 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\Administrator\Desktop\test.txt",'r',encoding='utf-8')as filel:
 with open(r"C:\Users\Administrator\Desktop\test.txt",'r',encoding='utf-8')as filel:
     for data in filel:
     for data in filel:
         if '小强:10本' in data:
         if '小强:10本' in data:
-            print('小强在程序里面！')    
+            data=data.replace('小强:10本','小强:11本')    
         if '小兰:12本' in data:
         if '小兰:12本' in data:
-            print('小兰在程序里面！')    
-
+            data=data.replace('小兰:12本','小兰:13本')   
+        new_data=data
+with open(r"C:\Users\Administrator\Desktop\test.txt",'w',encoding='utf-8')as filel:
+    filel.write(new_data)
+with open(r"C:\Users\Administrator\Desktop\test.txt",'r',encoding='utf-8')as filel:
+    a = filel.read()
+    print(a)    
\ No newline at end of file