auto save

diy.py

+with open(r"c:\Users\64378\Documents\lesson13-1\sales_list.txt","r",encoding="utf-8") as feli:
+    a=feli.readlines()
+    #print(a)
+
+feli_new=[]
+for i in a:
+    data=i.split()
+
+    sum=0
+    for hhh in data[1:]:
+        sum += int(hhh)
+    www=data[0]+str(sum)+"\n"
+    feli_new.append(www)
+   
+with open(r"c:\Users\64378\Documents\lesson13-1\sales_list.txt","a",encoding="utf-8") as feli:
+    feli.writelines(feli_new)
\ No newline at end of file

hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.py

+a=["你好呀！\n","悟空\n","我在贝尔编程学python\n"]
+with open(r"C:\Users\64378\Desktop\hhh.txt","a",encoding="utf-8") as feli:
+    feli.writelines(a)