我在保存保存最后一行 python 的文件時遇到問題

Question

lines = [line.rstrip('\n') for line in open('1.txt','r')]
for names in lines:
   for x in range(100):
        y=names.lower()+f'{x:02}'
        print(y)
        with open('1.txt','w') as f:
        f.write(y + '\n')

此代碼讀取文件並將 00 添加到 99 我在將數據保存到同一文件並將舊數據替換為新數據時遇到問題它保存了最后一行我想要一個解決方案，謝謝

Answer 1

如果我正確理解了您的問題，您希望在新文件中將單獨一行中的每個名稱重寫 100 次，並在后面添加數字 00-99。 別說了...

def rewrite_names_v1():
    
    #get list of names
    with open('demo.txt','r') as file:
        names = [line.strip('\n') for line in file]

    with open('demo.txt','w') as file:
        for name in names:
            lowercase_name = name.lower()
            for x in range(100):
                result = lowercase_name+f'{x:02}'
                # print(result)
                if name != names[-1] or x != 99:
                    file.write(result+'\n')
                else:
                    file.write(result)

if __name__ == '__main__':
    rewrite_names_v1() #rewrites file with range(100) as nested loop