auto save

diy.py

+with open(r"c:\Users\EDY\Documents\lesson13-1\sales_list.txt",
+            "r",encoding="utf-8") as file:
+    a = file.readlines()   # 按行读取，返回列表，一行一数据
+
+final_sum = []
+for i in a:   # 遍历得到数据
+    data = i.split()  # 分割符，返回列表
+    sum = 0
+    for sales in data[1:]:
+        sum += int(sales)
+    result = data[0]+ str(sum)+"\n"
+    final_sum.append(result)
+
+with open(r"c:\Users\EDY\Documents\lesson13-1\new_sales_list.txt","w",encoding="utf-8") as file:
+    file.writelines(final_sum)
\ No newline at end of file

new_sales_list.txt

+悟空348
+诺依380
+小贝182
+李丽201
+宋扬107
+王明245
+李强164
+孙小白222
+苏琪137
+刘若若147
+刘阳226
+王胜男123
+王娇131