auto save

diy.py

 with open(r'c:\Users\PC\Desktop\sales_list.txt','r',encoding='utf-8') as abc:
     a = abc.readlines()
+file_sum = []
 for i in a:
     data=i.split()
     name = data[0]
@@ -7,4 +8,7 @@ for i in a:
     sum = 0
     for k in yimai:
         sum = sum + int(k)
-    print(name + "总共捐款了" + str(sum) + "元")
\ No newline at end of file
+    result = data[0] + str(sum) + '\n'
+    file_sum.append(result)
+with open(r'c:\Users\PC\Desktop\hello.txt','a',encoding="utf-8")as file:
+    file.writelines(file_sum)
\ No newline at end of file