auto save

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'
-filel=open(r'C:\Users\客家话吧\Desktop\李俊颐.txt','w',encoding= 'UTF-8') 
-filel.write("我妈：99999")
+filel=open(r'C:\Users\客家话吧\Desktop\李俊颐.txt','w',encoding= 'UTF-8')#打开文件
+filel.write("我妈：99999")#写入"我妈：99999"
 filel.close()
-with open(r'C:\Users\客家话吧\Desktop\李俊颐.txt','r',encoding= 'UTF-8') as wnjian:
+with open(r'C:\Users\客家话吧\Desktop\李俊颐.txt','r',encoding= 'UTF-8') as wnjian:#写入文件
      for i in wnjian:
          i=i.replace('我妈：99999','我妈：999999999999')
-         new_i += i
+         new_i+=i
          print(new_i)
 with open(r'C:\Users\客家话吧\Desktop\李俊颐.txt','w',encoding= 'UTF-8') as wnjian:
     wenjian.write(new_i)     

ljy.py

+with open(r'C')
\ No newline at end of file