auto save

diy.py

 # 写入同学们的捐赠明细：、'小丽：11本'、'李文：9本'、'张伟：16本'
 # 写入同学们的捐赠明细：、'小丽：11本'、'李文：9本'、'张伟：16本'
-filel=open(r'C:\Users\Adiaministrator\Desktop\MEG\.txt','w'encoding='utf-8')
-filel.while('小兰：12本')
-filel.close()
+# filel=open(r'C:\Users\Adiaministrator\Desktop\MEG\.txt','w'encoding='utf-8')
+# filel.while()
+# filel.while('小兰：12本')
\ No newline at end of file
+# filel.close()
+new_data=''
+with open(r'C:\Users\Administrator\Desktop\text.txt','w',encoding='utf-8') as file1:
+    file1.write('小兰：12本\n')   
+    file1.write('小强：10本\n')   
+with open(r'C:\Users\Administrator\Desktop\text.txt','r',encoding='utf-8') as file1:
+    for data in file1:
+        if '小强：10本' in data:
+            data=data.replace("小强：10本","小强:11本")
+        new_data +=data
+with open(r'C:\Users\Administrator\Desktop\text.txt','w',encoding='utf-8') as file1:
+    file1.write(new_data)
+    # print(data)
\ No newline at end of file