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Commit 0f65562d authored 2 years ago by BellCodeEditor's avatar BellCodeEditor
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parent a760331c
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Showing with 2 additions and 16 deletions
  • diy5.py
diy5.py
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with open(r'C:\Users\CM\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
a=file.readlines()
final_sum=[]
for i in a: #用for...in...把每一行的数据遍历
data=i.split() #把字符串切分成更细的一个个的字符串
sum=0 #先把总钱数设为0
for sales in data[1:]: #遍历列表中第1个数据和之后的数据
sum=sum+int(sales)#然后依次加起来,但sales是字符串,所以要转换
result = data[0]+str(sum)+'\n' #结果就是学生姓名和总义卖款,后面加上换行符,写入的时候更清晰
final_sum.append(result) #每次把结果都补充到列表中
# 这里写入文件的时候,注意命名一个新的文件名哦
with open(r'C:\Users\CM\Documents\lesson13-1\new_sales_list.txt','a',encoding='utf-8') as file:
file.writelines(final_sum)
\ No newline at end of file
wi
\ No newline at end of file
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