auto save

diy.py

+ with open(r'c:\Users\Admin\Documents\lesson13-1\sales_list.txt',"r",encoding="utf-8") as file1:
+    a=file1.readlines()
+    #print(a)
+for i in a:
+    print(data[1:])
+    data=i.split()
+sum=0
+for sales in data[1:]:
+    sum=sum+sales
+    print(sum)
+ result=data[0]+str(sum)
+ file1_sum.append(result)                   
+
+ with open(r'c:\Users\Admin\Documents\lesson13-1\sales_list.txt',"r",encoding="utf-8") as file1:
+     file.writelines(file1_sum)
+                                                                                                             
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sales_list.txt

-悟空 12 15 11 12 11 12 13 21 27 12 15 30 22 26 15 12 21 23 27 11
 诺依 21 29 15 21 21 21 29 30 12 13 12 12 24 52 27 26 15
 小贝 29 11 11 15 13 15 13 11 11 29 13 11 
 李丽 13 15 20 15 15 11 17 20 20 11 12 12 20