auto save

diy.py

-with open(r'c:\Users\Lenovo\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as abcd:
-    a=abcd.readlines()
-yyds=[]
-for i in a:
-    data=i.split()
-    zbb=0
-    for zxc in data[1:]:
-        zbb+=int(zxc)
-    ab=data[0]+str(zbb)
-    yyds.append(ab)
-with open(r'c:\Users\Lenovo\Documents\lesson13-1\sales_list.txt','a',encoding='utf-8')as abcd:
-    abcd.writelines(yyds)
+# 在diy1的基础上选一种打开方式，建议选with open() as
+with open(r'C:\Users\CM\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
+    a=file.readlines()
+    #print(a)
 
+for i in a:
+    b=i.split()
+    sum=0
+    for h in b[1:]:
+        sum=sum+int(h)
+    text=b[0]+str(sum)
+    print(txt)
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