auto save

diy.py

+# 写入同学们的捐赠明细：'小兰：12本'、、'李文：9本'、'张伟：16本'
+file1=open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')
+file1.write('王恩泽：1本\n')
+file1.close()
+with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8') as file1:
+    file1.write('刘宸希：1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000本\n')
+    file1.write('谭雨非:0本\n')
+new_data=''
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as file1:
+   for data in file1:
+        if '王恩泽：1本' in data:    
+            data=data.replace('王恩泽：1本','王恩泽：2本')
+        new_data += data
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8') as file1:
+    file1.write(new_data)
+
+    
+
+        
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