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\Administrator\Desktop\diy.text",'r',encoding='utf-8') as file1:
+    a=file1.read()
+    print(a)
+    for data in file1:
+        if '小强:12本' in data:
+            data=data.replace('小强:12本','小强:11本')
+            # print('数据在文件中')
+        # if '小兰：12本' in file:
+        #     print('数据在文件中')
+            
+        new_data+=data
+with open(r"C:\Users\Administrator\Desktop\diy.text",'w',encoding='utf-8') as file1:        
+    file1.write(new_data)
+        
\ No newline at end of file