save project

diy.py

 with open(r'C:\Users\yihang\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file1:
 with open(r'C:\Users\yihang\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file1:
     a=file1.readlines() 
     a=file1.readlines() 
-    for i in a:
+data=[]
+all=0
+for i in a:
     b=i.split()
     b=i.split()
     sum=0
     sum=0
-        for i in b[1:]:
-            sum=sum+int(i)
-        print(b[0],sum)        
+    for o in b[1:]:
+        sum=sum+int(o)        
+    all=all+sum
+    print(all)
+    total=b[0]+str(sum)+'\n'
+    data.append(total)
+with open(r'C:\Users\yihang\Desktop\a.txt',"w",encoding='utf-8') as file2:   
+        file2.writelines(data)
+        file2.writelines(str(all))
+